Do dietary supplements have side effects?

The answer is that it varies from person to person and from dose to dose. There are almost no side effects when used rationally, but the risk of abuse and inappropriate use is really not small.

Not long ago, I had a sophomore girl here. I bought high-concentration natural vitamin E from a blogger in order to whiten her skin. She took 3 pills a day for two months. Not only did she not get much whitening, her period was delayed for more than ten days, but she also suffered from nausea at every turn. When I went to the hospital to check hormones, I found that excessive vitamin E intake affected the endocrine system. It took almost a month to stop taking the medicine and adjust it before returning to normal.

Some people also say that I have been taking supplements for several years without any problems. This is really not a lie. My mother is 62 years old. She doesn’t like to drink milk and rarely goes out in the sun. A few years ago, a bone density test showed a calcium deficiency. The doctor asked me to supplement 600mg of calcium and 400IU of vitamin D every day. It has been almost 4 years since I took it. Every year, my bone density has increased steadily during physical examinations, and I haven’t had any adverse reactions.

In fact, we who provide nutritional guidance often say that the core of dietary supplements lies in the word "supplement". Just like the water you usually bring to work is not enough to drink, and you buy a bottle of mineral water to make up for it, if you can't finish the water in your hand and still drink it, of course you will feel uncomfortable. Nowadays, many people's misunderstandings about supplements either think that they are subject to an "IQ tax" and can be slapped to death, or they think that they are natural and have no side effects and they can be eaten casually. Both of these ideas are quite extreme.

I once met a young man who works in the Internet. He stayed up late every day to catch up on projects. He bought imported liver-protecting tablets from Internet celebrities for fear of hurting his liver. He also deliberately increased his intake, three pills at a time. After taking it for three months, he went for a physical examination. His transaminase was two points higher than before. The doctor said that his liver function was fine. The high concentration of silymarin in the supplement put an extra metabolic burden on the liver. After two months of stopping, it returned to normal after another check. Not to mention that people who are taking prescription drugs are at higher risk if they take supplements without telling their doctor. In the past, an old man who was taking warfarin secretly added ginkgo leaf extract to his medication. As a result, the bruises from the bumps could not go away for half a month. This was because the synergy between ginkgo extract and anticoagulants increased the risk of bleeding.

To put it simply, this thing is like touching up makeup. If the makeup comes off, it will be applied naturally and docilely. If you apply it layer by layer on top of your makeup, of course it will get stuck, and maybe you will get pimples all over your face. There is no absolute certainty that it has or has no side effects, it just depends on whether it is used correctly.