100 grams in the United States is approximately 670.00 calories.

When choosing pecans, you should check whether the pecans are plump and whether the color of the pecans is uniform. You should choose pecans of similar sizes.

Pecan fruits are available in large, medium and small tips; large round, medium round and small round. The big ones are more expensive, but not necessarily the big ones. It depends on personal preference. Small tastes Even more delicate.

Pecan fruits are usually large and round walnuts with thin and white shells, high kernel yield, dryness, large kernel slices, white color and high oil content. The selection method should be based on observation. Plump kernels are the best, and dry kernels are the second best.

The seed kernels are all oily, sticky, dark brown, and smell bad, and have been severely spoiled and cannot be eaten.

The functions of pecans

1. Antioxidant.

The American Dietetic Association recommends that people eat pecans two or three times a week, especially middle-aged and elderly postmenopausal women, because pecans contain arginine, oleic acid, and antioxidants. It is very beneficial to protect cardiovascular system and prevent coronary heart disease, stroke, Alzheimer's disease, etc. Don't eat too much at one time, otherwise it will affect digestion.

2. Brain-building and intelligence-enhancing.

The trace elements zinc and manganese contained in pecans are important components of the pituitary gland. Regular consumption of pecans is beneficial to the nutritional supplement of the brain and has the effect of strengthening the brain and improving intelligence; the appearance of pecans Similar to the shape of the human brain, it has the brain-tonifying effect of "complementing shape with shape".

3. Beauty.

It can nourish the skin and make people white and tender, especially the elderly with aging skin should eat it regularly. Pecans are also anti-aging, an auxiliary agent in the treatment of neurasthenia, and can delay memory decline. The vitamin E contained in pecan nuts can protect cells from oxidative damage by free radicals and is an anti-aging substance recognized by the medical community.

Reference for the above content: People's Daily Online - Pecans are good for brain health, intelligence and beauty. Who is suitable for eating pecans