Nowadays, people pay more and more attention to health and health preservation. Many people usually eat a lot of health care products, but in fact, the efficacy of many health care products is not as effective as the legend, and it is likely to be a waste of money.

1 is Ejiao. Actually, it's made of donkey skin. After high-temperature cooking, the collagen contained in it is hydrolyzed to form a gelatinous substance.

Ejiao is usually considered as a good beauty product for women. Its main component is actually collagen, but the collagen in the cross contains a lot of nonessential amino acids, which is not tryptophan that our body needs. Moreover, this kind of collagen is not only found in fish skin, but also in pig skin on the market, and it is cheap.

The second is oral collagen, which is often considered as a health care product to maintain skin elasticity. And a variety of oral collagen has been introduced on the market. However, this oral collagen can not be directly absorbed by the skin, but enters the digestive organs first, so its beauty beauty effect on the skin is actually very limited.

At the same time, there are many inferior collagen in the market. If you want to supplement your skin with enough collagen, it's actually good to eat an egg every day.

The third popular health care product is high calcium milk powder for middle-aged and elderly people. When people reach a certain age, there will be a lot of calcium loss in the body, so it is particularly prone to problems such as osteoporosis. At this time, it is necessary to properly supplement calcium. The high calcium milk powder mentioned in the market is only artificially added with calcium carbonate. It is not milk calcium with high absorption rate. This ingredient is not easy to be absorbed after entering the human body, and may also form stones.