Fish oil, vitamin D, antioxidants... Is it necessary to buy health supplements to supplement these nutrients?

Health products are sought after by many people, who believe that eating health products can strengthen the body and prevent diseases

1.

According to an analysis in an article published by Harvard Health, most people who spend most of their time indoors today reduce the effects of sun exposure such as wrinkles, but also make many people lack sufficient vitamin

It is worth noting that there are fewer ways to obtain vitamin D in the daily diet.

Wang Xinliang, chief physician of the Department of Pediatrics at the Second Hospital of Hebei Medical University, pointed out in an article in Health Times in 2017 that sun exposure can help the body obtain vitamin D, and vitamin D can help the body absorb calcium

2.

According to the analysis in the "Harvard Health" article, additional supplemental antioxidants are not needed, and even studies have shown that high levels of antioxidants are associated with a variety of diseases

Yun Wuxin, a senior member of the American Food Technology Association and a food engineering doctor, pointed out in an article in Health Times in November 2017 that blindly supplementing antioxidants may cause unknown health risks

Therefore, although antioxidants are nutrients needed by the human body, they can be obtained through diet such as vegetables and fruits, and there is no need to supplement antioxidants to obtain them, and they may even be harmful

3.

The analysis in the article released by "Harvard Health" believes that because vitamin B12 is mainly found in animal foods, especially meat, eggs and dairy products

4.

Eating fish regularly is very good for health, because fish, especially deep-sea fish, contain various vitamins and trace elements

In December 2018, Fan Zhihong, an associate professor at the School of Food Science of China Agricultural University, gave an example in an article published by Health Times, such as people in some areas who cannot eat fish on a daily basis, vegetarians who do not eat fish, and women who are pregnant or in certain disease states, follow the advice of professionals.

This time, the article published in "Harvard Health" reminded not to take cod liver oil as fish oil.

5, cellulose: can be supplemented in moderation

Fiber can relieve constipation and is also an indispensable substance for the human body, but in fact, high fiber is not only good for health without harm

In general, whole grains, fruits, vegetables, nuts, and seeds are the best sources of fiber, which can also be supplemented in moderation if your daily intake is insufficient
.

6.
Selenium: supplementation is not recommended

The article published by Harvard Health pointed out that selenium is mainly known for its anti-cancer effects, especially its role in reducing the risk of prostate cancer, but the results of various studies on selenium are inconsistent, and some studies show that its benefits are not obvious
.

Zhu Yi, an associate professor at the School of Food Science of China Agricultural University, pointed out in an article in Health Times in March 2017 that a large amount of selenium supplementation should not be encouraged, because too much selenium supplementation is not good for the health, and if you are not careful, you will supplement too much
.
Because the range between beneficial and toxic amounts of selenium is the narrowest of all trace elements
.
Under normal circumstances, the recommended daily intake of selenium for the human body is 50-200 micrograms
.
However, if it exceeds 400 micrograms for adults, 180 or 360 micrograms for children, or if adults consume more than 800 micrograms of selenium per day for a week, the symptoms of poisoning may appear
.

In addition, excessive selenium supplementation will affect the absorption of manganese in the human body, and manganese deficiency will cause a series of health problems
.
Some researchers worry that blind selenium supplementation may increase the risk of diabetes
.
Some researchers warn that patients who already have prostate cancer should be cautious about taking selenium because it may increase the risk of death
.

Although the human body cannot synthesize selenium by itself, the main source of selenium can depend on the diet.
For a healthy person who is not partial or picky eater, the body's demand for selenium can be met through a balanced diet without additional supplementation
.
Foods with high protein content are also relatively high in selenium content, such as animal offal, seafood, fish, eggs, meat, grain, milk, etc.
are good sources of dietary selenium
.

Although some nutrients can indeed be supplemented by taking health supplements, in most cases, healthy adults do not necessarily need to supplement various nutrients
.

If you go to the hospital and ask the doctor, the clinician will tell you that for healthy adults, you don’t need to take health care products often at all, you only need to eat well and develop good eating and living habits.
, nor can it replace a healthy diet
.

For certain age groups or patients with certain diseases, such as malabsorption of nutrients or lack of certain nutrients, their nutritional needs should be assessed to determine whether dietary supplements are needed
.
(Editor Li Chuang)