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待核查内容1:牛油果的确「油很大」,脂肪占比约15%(来源:https://fdc.nal.usda.gov/food-details/171705/nutrients)
待核查内容2:但这主要是不饱和脂肪酸(占约 2/3)(来源:“The Nutrition Source.” Harvard T.H. CHAN SCHOOL OF PUBLIC HEALTH, https://nutritionsource.hsph.harvard.edu/avocados/.)
待核查内容3:都是有益脂肪
待核查内容4:利于心脏健康
待核查内容5:不会升高血液中的胆固醇
行动计划
Water 73.2 gAnalytical 40
Samples for Water
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
64.483.83/1/2003Energy 160 kcal
Samples for Energy
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8/1/2010Energy 670 kJCalculated
Samples for Energy
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8/1/2010Protein 2 g 34
Samples for Protein
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
1.5333/1/2003Total lipid (fat) 14.7 g Analytical 35
Samples for Total lipid (fat)
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8.423.23/1/2003Ash 1.58 gAnalytical 34
Samples for Ash
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.822.83/1/2003Carbohydrate, by difference 8.53 gCalculated
Samples for Carbohydrate, by difference
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8/1/2010Fiber, total dietary 6.7 gAnalytical 27
Samples for Fiber, total dietary
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
3.212.73/1/2003Total Sugars 0.66 gAnalytical 12
Samples for Total Sugars
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
02.423/1/2003Sucrose 0.06 gAnalytical 10
Samples for Sucrose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
00.158/1/2010Glucose 0.37 gAnalytical 10
Samples for Glucose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.062.178/1/2010Fructose 0.12 gAnalytical 10
Samples for Fructose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.070.258/1/2010Lactose 0 gAnalytical 10
Samples for Lactose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
007/1/2008Maltose 0 gAnalytical 10
Samples for Maltose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
007/1/2008Galactose 0.1 gAnalytical 8
Samples for Galactose
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
00.38/1/2010Starch 0.11 gAnalytical 4
Samples for Starch
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.050.173/1/2003Calcium, Ca 12 mgAnalytical 29
Samples for Calcium, Ca
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8193/1/2003Iron, Fe 0.55 mgAnalytical 29
Samples for Iron, Fe
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AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.141.063/1/2003Magnesium, Mg 29 mgAnalytical 17
Samples for Magnesium, Mg
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
17343/1/2003Phosphorus, P 52 mgAnalytical 16
Samples for Phosphorus, P
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
30703/1/2003Potassium, K 485 mgAnalytical 29
Samples for Potassium, K
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
2196913/1/2003Sodium, Na 7 mgAnalytical 23
Samples for Sodium, Na
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
1173/1/2003Zinc, Zn 0.64 mgAnalytical 17
Samples for Zinc, Zn
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.350.833/1/2003Copper, Cu 0.19 mgAnalytical 17
Samples for Copper, Cu
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.090.383/1/2003Manganese, Mn 0.142 mgAnalytical 17
Samples for Manganese, Mn
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.070.193/1/2003Selenium, Se 0.4 µgAnalytical 5
Samples for Selenium, Se
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.20.63/1/2003Fluoride, F 7 µgAnalytical 9
Samples for Fluoride, F
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
1/1/2006Vitamin C, total ascorbic acid 10 mgAnalytical 20
Samples for Vitamin C, total ascorbic acid
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
6.324.13/1/2003Thiamin 0.067 mgAnalytical 16
Samples for Thiamin
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.0110.13/1/2003Riboflavin 0.13 mgAnalytical 16
Samples for Riboflavin
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.0370.183/1/2003Niacin 1.74 mgAnalytical 16
Samples for Niacin
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.3572.513/1/2003Pantothenic acid 1.39 mgAnalytical 16
Samples for Pantothenic acid
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.6122.713/1/2003Vitamin B-6 0.257 mgAnalytical 15
Samples for Vitamin B-6
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.070.4523/1/2003Folate, total 81 µgAnalytical 24
Samples for Folate, total
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
141555/1/2004Folic acid 0 µgAssumed zero (Insignificant amount or not naturally occurring in a food, such as fiber in meat)
Samples for Folic acid
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
1/1/2001Folate, food 81 µgAnalytical 24
Samples for Folate, food
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
141558/1/2010Folate, DFE 81 µgCalculated
Samples for Folate, DFE
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8/1/2010Choline, total 14.2 mg
Samples for Choline, total
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
12/1/2006Betaine 0.7 mgAnalytical 2
Samples for Betaine
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.60.712/1/2006Vitamin B-12 0 µgAssumed zero (Insignificant amount or not naturally occurring in a food, such as fiber in meat)
Samples for Vitamin B-12
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
8/1/1982Vitamin B-12, added 0 µgAssumed zero (Insignificant amount or not naturally occurring in a food, such as fiber in meat)
Samples for Vitamin B-12, added
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
9/1/2004Vitamin A, RAE 7 µg
Samples for Vitamin A, RAE
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
3/1/2003Retinol 0 µgAssumed zero (Insignificant amount or not naturally occurring in a food, such as fiber in meat)
Samples for Retinol
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
6/1/2002Carotene, beta 62 µgAnalytical 33
Samples for Carotene, beta
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
321403/1/2003Carotene, alpha 24 µgAnalytical 31
Samples for Carotene, alpha
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
01003/1/2003Cryptoxanthin, beta 28 µgAnalytical 29
Samples for Cryptoxanthin, beta
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
01203/1/2003Vitamin A, IU 146 IU
Samples for Vitamin A, IU
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
3/1/2003Lycopene 0 µgAnalytical 7
Samples for Lycopene
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
003/1/2003Lutein + zeaxanthin 271 µgAnalytical 16
Samples for Lutein + zeaxanthin
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
1703793/1/2003Vitamin E (alpha-tocopherol) 2.07 mgAnalytical 23
Samples for Vitamin E (alpha-tocopherol)
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.663.283/1/2003Vitamin E, added 0 mgAssumed zero (Insignificant amount or not naturally occurring in a food, such as fiber in meat)
Samples for Vitamin E, added
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
9/1/2004Tocopherol, beta 0.05 mgAnalytical 10
Samples for Tocopherol, beta
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.020.083/1/2003Tocopherol, gamma 0.33 mgAnalytical 19
Samples for Tocopherol, gamma
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
0.090.753/1/2003Tocopherol, delta 0.02 mgAnalytical 10
Samples for Tocopherol, delta
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how many containers have been acquired, have not been composited. If more than one location is shown, the acquired samples were composited
00.033/1/2003Tocotrienol, alpha 0.01 mgAnalytical 8
Samples for Tocotrienol, alpha
Analysis DetailsAmount/100gUnitTechniqueMethodCityStateAcquisition DateFDC Sample ID
AcquisitionSamples with a single location, regardless of how ...
我已经查看了USDA食品数据中心关于牛油果的营养成分数据。现在我需要继续核查其他信息,特别是关于牛油果脂肪的组成和健康影响。
Avocados or “alligator pears” are known for their creamy smooth flesh and bumpy skin. They are a popular food across many cultures. Perhaps best known as the star ingredient in guacamole, they are versatile and prepared in an array of dishes, or simply eaten plain with a spoon. Although not sweet, avocados are botanically classified as a fruit with a large berry and single center pit, grown from the Persea americana tree. They are believed to have originated in Mexico or Central America, with Mexico being the leading producer worldwide. [1]
Their nutrition profile makes them a staple in various healthful meal plans. Avocados are a good source of fiber, and contain more fat (the good kind) than carbohydrate, so are popular on lower-carbohydrate diets such as with diabetes. Their heart-friendly fats do not increase blood cholesterol, which can provide satisfaction on a traditional cholesterol-lowering diet that is often low in fat and cholesterol. It is one the highest-fat plant foods, making it a popular inclusion in vegan and vegetarian diets. The slightly earthy but neutral flavor of avocados works well in sauces, salad dressings, sandwiches, baked goods, salads, and grain dishes to add richness.
A whole medium avocado contains about 240 calories, 13 grams carbohydrate, 3 grams protein, 22 grams fat (15 grams monounsaturated, 4 grams polyunsaturated, 3 grams saturated), 10 grams fiber, and 11 milligrams sodium. Along with their low sodium levels, avocados contain no cholesterol.
Avocados contain several nutrients including carotenoids, monounsaturated fats, potassium, and fiber that have been associated with a reduced risk of chronic diseases, especially when included as part of a balanced nutritious diet. The nutritional profile of avocados fits well with healthful dietary patterns such as the Mediterranean and DASH diets. Published health research on avocados is largely funded by avocado industry groups; the research cited below attempts to include non-industry-funded studies.
Cardiovascular disease
The primary type of monounsaturated fat in avocados is from oleic acid, the main fatty acid in olive oil. Some studies show a reduction in LDL cholesterol when replacing other types of fat in the diet with avocados. [2] As with all plant foods, avocados are cholesterol-free. However, they contain phytosterols, or plant sterols, that have a similar chemical structure to cholesterol but are poorly absorbed in the intestines and therefore may interfere with cholesterol absorption. According to the American Heart Association, phytosterols have been found to reduce total and LDL cholesterol levels in the body by lowering cholesterol absorption. [3] Avocados are also rich in potassium, a mineral that helps to regulate blood pressure by maintaining normal levels of fluid inside of cells and helping muscles to contract. Potassium also works as an electrolyte that sends electrical signals in the heart to create a steady heartbeat.
A large cohort of almost 69,000 women and 42,000 men were followed for 30 years to see if long-term avocado intake affected risk of cardiovascular disease (CVD). [4] The authors adjusted for diet and lifestyle factors associated with CVD to pinpoint the specific effect of avocados. Compared with those who didn’t eat avocados, those who ate two or more servings a week (1 serving = ½ avocado) had a 16% lower risk of CVD and a 21% lower risk of heart disease. The benefit was especially strong when swapping fat-filled foods like whole-milk dairy (butter, cheese, yogurt), processed meats (hot dogs, bacon, sausage), and eggs with an equal serving of avocado. However, there were similar heart benefits when swapping high-fat plant foods like nuts or olive oil with avocado.
Type 2 diabetes
Avocados are a good source of fiber, low in total carbohydrate, and rich in monounsaturated fats. They have a low glycemic index (GI) of about 40; low glycemic foods have a rating of 55 or less. Low GI foods are less likely to cause surges in blood glucose. Large epidemiological studies have found that replacing saturated fats with unsaturated (monounsaturated and polyunsaturated) fats can improve insulin sensitivity and reduce the risk of type 2 diabetes. [5] These nutritional components are favorable for the prevention and control of type 2 diabetes.
Eye health
Avocados contain plant chemicals called carotenoids. Two types of these fat-soluble carotenoids, lutein and zeaxanthin, are found in the human eye and protect the eye from ultraviolet light damage from the sun. A diet rich in these carotenoids is associated with a lower risk of macular degeneration and cataracts. [6]
Microbiome
The fibers in avocados act as prebiotics (food for beneficial bacteria in the intestines) and have been found to improve the diversity of microflora in the colon. [1] These bacteria digest and break down fibers into short chain fatty acids, which are actively researched for their role in chronic disease prevention.
Depending on the variety, avocados may be round or pear-shaped, green or black, and small or large. The skin is typically bumpy. The flesh when ripe is smooth and buttery. They are a climacteric fruit, which continues to ripen after harvesting. The Hass avocado is the most common type, available year-round.
If you are planning to use an avocado immediately after purchase, choose a ripe one with dark green or almost black skin. It should yield to pressure when squeezed. Avocados with light green skin that are very firm are unripe and will need to sit a few days before eating. If the avocado has dark shriveled skin, dents, or spots of mushy flesh, it may be overripe and unpleasant to eat.
Avocado oil is extracted from the flesh of pressed avocados. It can replace other liquid cooking oils and has a very high smoke point of almost 500°F. Avocado oil is often compared with olive oil because they are both rich in the fatty acid, oleic acid, but avocado oil has a more neutral flavor. [7] It can also be used to make a homemade salad dressing: whisk or blend together ¼ cup avocado oil, 2 tablespoons Dijon mustard, and 4 teaspoons balsamic or apple cider vinegar; add additional low-sodium spices like black pepper or garlic powder as desired.
Avocados are often sold with hard, unripe flesh, which will ripen in 2-3 days. You can leave the fruit at room temperature, or place in direct sunlight to speed ripening. You can also place the avocado sealed in a paper bag with a banana; the ethylene gases in the banana will speed ripening. When ripe, avocados will feel slightly soft when squeezed. The flesh of avocados is infamous for quickly turning brown once exposed to air, called enzymatic browning. Although unappetizing to see, the brown flesh is perfectly edible. Still, there are tips to slow or reduce browning after cutting into an avocado:
Removing an avocado pit isn’t as challenging as you might think. Although a popular method is to stab a knife into the pit of an avocado half and cleanly remove it, this carries the potential danger of stabbing your hand! Instead, place your index and middle finger on the flesh on each side of the pit, placing your thumb behind the avocado on the skin; push into the center with your thumb until the pit pops out. From there, slice, dice, or mash the flesh as desired to be used in recipes.
The monounsaturated fat in avocados is stable in high heat and can be used not only in cooking but also in baking. Pureed avocado can be substituted for butter or oil in baking recipes, using a 1:1 ratio (1 cup butter = 1 cup avocado).
Here are some ideas to use avocado:
References
Last reviewed April 2022
我已经查看了两个关键来源:USDA食品数据中心和哈佛大学公共卫生学院的营养来源网页。现在我需要进一步核查关于牛油果脂肪对心脏健康和胆固醇影响的信息。
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avocado fatty acid composition monounsaturated saturated polyunsaturated ratio我已经获取了关于牛油果脂肪酸组成的一些信息,但我需要更多关于牛油果脂肪对心脏健康和胆固醇影响的科学证据。让我继续搜索。
Search
avocado effect on cholesterol clinical studies meta-analysis已核查结论清单
已核查内容1:牛油果的确「油很大」,脂肪占比约15%(来源:https://fdc.nal.usda.gov/food-details/171705/nutrients)
已核查内容2:但这主要是不饱和脂肪酸(占约 2/3)(来源:“The Nutrition Source.” Harvard T.H. CHAN SCHOOL OF PUBLIC HEALTH, https://nutritionsource.hsph.harvard.edu/avocados/.)
已核查内容4:利于心脏健康
已核查内容5:不会升高血液中的胆固醇
待补充核查清单
待核查内容1:都是有益脂肪
行动计划
Search
WHO American Heart Association healthy fats vs unhealthy fats saturated unsaturated我已经获取了关于脂肪分类及其健康影响的权威信息。现在我需要查找更多关于牛油果脂肪酸构成的详细信息,以便全面评估"都是有益脂肪"这一说法的准确性。
Search
avocado fatty acid composition percentage saturated monounsaturated polyunsaturated我已经收集了关于脂肪分类及牛油果脂肪组成的信息。现在我需要查找更多关于牛油果脂肪对健康影响的科学研究,特别是关于心脏健康和胆固醇的影响。
Search
avocado consumption effect on cholesterol heart health clinical studies meta-analysis我已经收集了足够的信息来评估原始陈述的准确性。现在我将提供最终答案。
已核查结论清单
已核查内容1:牛油果的确「油很大」,脂肪占比约15%(来源:https://fdc.nal.usda.gov/food-details/171705/nutrients)
已核查内容2:但这主要是不饱和脂肪酸(占约 2/3)(来源:"The Nutrition Source." Harvard T.H. CHAN SCHOOL OF PUBLIC HEALTH, https://nutritionsource.hsph.harvard.edu/avocados/.)
已核查内容3:都是有益脂肪
已核查内容4:利于心脏健康
已核查内容5:不会升高血液中的胆固醇
我需要整合所有信息,提供一个全面的最终回答
本次核查共涉及5条陈述,其中2条基本属实,3条部分属实,无完全不可靠内容。
部分属实的内容包括:
建议:用户在引用牛油果相关营养信息时,可以使用本报告中更精确的数据和表述,特别是关于脂肪组成和健康影响的部分。总体而言,原陈述传达的核心观点(牛油果含有较高比例的健康脂肪,有益于心脏健康)是可靠的,但部分细节需要修正以提高准确性。
| 原文陈述 | 可靠性分析 | 证据 |
|---|---|---|
| 牛油果的确「油很大」,脂肪占比约15% | 基本属实。美国农业部数据显示,每100克生牛油果的总脂肪含量为14.7克,约等于15%。 | "Total lipid (fat) 14.7 g" https://fdc.nal.usda.gov/food-details/171705/nutrients(发布时间不详) |
| 但这主要是不饱和脂肪酸(占约 2/3) | 部分属实。牛油果脂肪"主要是不饱和脂肪酸"的说法正确,但不饱和脂肪酸的实际占比高于"约2/3"。"约2/3"这个数据更接近于其中单不饱和脂肪酸的占比。 | "Fat (mostly monounsaturated 67%)" https://nutritionsource.hsph.harvard.edu/avocados/(最后更新:2022年4月) "The avocado oil consists of 71% monounsaturated fatty acids (MUFA), 13% polyunsaturated fatty acids (PUFA), and 16% saturated fatty acids (SFA)" https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.809.7334&rep=rep1&type=pdf(发布时间不详) |
| 都是有益脂肪 | 部分属实。牛油果中的不饱和脂肪酸(约84%)被权威机构认为是"有益脂肪",但其中约16%的饱和脂肪酸通常被归类为"应限制摄入"的脂肪类型,因此"都是有益脂肪"的说法不够准确。 | "The American Heart Association recommends replacing bad (saturated) fats with good (unsaturated) fats as a part of a healthy eating pattern." https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/fats/the-facts-on-fats(发布时间不详) "Limit It: Saturated - Increases risk of cardiovascular disease - Raises bad cholesterol levels" https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/fats/the-facts-on-fats(发布时间不详) "The avocado oil consists of 71% monounsaturated fatty acids (MUFA), 13% polyunsaturated fatty acids (PUFA), and 16% saturated fatty acids (SFA)" https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.809.7334&rep=rep1&type=pdf(发布时间不详) "Unsaturated fats, which are liquid at room temperature, are considered beneficial fats because they can improve blood cholesterol levels, ease inflammation, stabilize heart rhythms, and play a number of other beneficial roles." https://nutritionsource.hsph.harvard.edu/what-should-you-eat/fats-and-cholesterol/types-of-fat/(发布时间不详) |
| 利于心脏健康 | 基本属实。现有科学证据普遍支持食用牛油果作为健康饮食的一部分有益于心血管健康。 | "Compared with those who didn't eat avocados, those who ate two or more servings a week (1 serving = ½ avocado) had a 16% lower risk of CVD and a 21% lower risk of heart disease." https://nutritionsource.hsph.harvard.edu/avocados/(最后更新:2022年4月) "There are eight preliminary clinical studies showing that avocado consumption helps support cardiovascular health." https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.809.7334&rep=rep1&type=pdf(发布时间不详) "Two servings of avocado a week have been linked to a lower risk of cardiovascular disease. A new study published in the Journal of the American Heart Association has found eating at least two servings of avocado a week is linked to a lower risk of cardiovascular disease." https://m.zhangqiaokeyan.com/journal-foreign-detail/0704052867309.html(2022年) |
| 不会升高血液中的胆固醇 | 部分属实。科学研究表明,食用牛油果不仅不会升高,反而对降低总胆固醇,特别是"坏胆固醇"(LDL)有积极作用。 | "Conversely, a significant reduction was observed in low-density lipoprotein (LDL) (WMD: −3.75 mg/dL; p < 0.001; I 2 = 0%)" https://pmc.ncbi.nlm.nih.gov/articles/PMC12221997/(2025-07-02) "Avocado consumption significantly reduced TC, LDL-C, and TG by −18.80 mg/dL..., −16.50 mg/dL..." https://m.cgl.org.cn/auto/db/detail.aspx?agfi=0&cid=0&cls=0&count=10&db=706211&gp=8&md=63&mdd=63&msd=63&pd=207&pdd=207&prec=False&psd=207&reds=cumulative;literature;nursing;allied;health;index;and&rid=233169&showgp=False&uni=True(2016-01-01) "In hypercholesterolemic subjects, avocado enriched diets improved blood lipid profiles by lowering LDL-cholesterol and triglycerides and increasing HDL-cholesterol compared to high carbohydrate diets or other diets without avocado." https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.809.7334&rep=rep1&type=pdf(发布时间不详) |