Key Points at a Glance
- If you ask five experts whether vitamin supplements are worthwhile, you'll probably get five different answers.
- It is important to make a distinction here: Are the supplements intended as a substitute or as a complementary measure?
- After all, there’s no one-size-fits-all answer to this question—it depends on the circumstances.
- Read this article to find out when vitamin supplements are a good idea and for whom.
It sounds like a cliché—and yet it’s true: If you eat a balanced diet, you have little to worry about when it comes to health issues. This also applies to the body’s vitamin balance. Of course, we all know how important it is to get enough of every kind of vitamin. But can vitamin intake always be improved with vitamin tablets and supplements?
Vitamins in tablet form don't always help
The rule could be so simple. “The more, the better”—that’s what you might think, especially when it comes to pills—but it’s not true. The same applies to minerals and vitamins: the body suffers if there is a prolonged and significant overdose. Doctors call this phenomenon “hypervitaminosis”; depending on the type of vitamin, it can lead to nausea, vision problems, hair loss, dizziness, nerve damage, osteoporosis, coma, or even death. Vitamin K is the only exception—there is no upper limit for it.
But there’s also the other side of the coin. This refers to people who—in addition to a vitamin-rich diet—need supplemental vitamins. This includes, for example, pregnant women, the elderly, competitive athletes, and vegans. These groups often have vitamin deficiencies that can be corrected with supplements. It’s important to note, however, that the body absorbs vitamins and minerals more effectively from natural foods than from supplements.
Which vitamin supplements are best for pregnant women and athletes?
Vitamin supplements can be helpful here; pregnant women often have a deficiency in folic acid (vitamin B9 or folate), sometimes even before pregnancy. Taking an appropriate supplement is certainly advisable. In addition, pregnant women must also take into account their increased need for omega-3 fatty acids, iron, calcium, and iodine.
Competitive athletes, on the other hand, need not only more nutrients and energy, but also more vitamins A, B, C, and E. In this case, vitamin supplements are definitely a good idea. Muscle growth is stimulated by free radicals, which require the antioxidant vitamins A, C, and E. People who lose a lot of sweat must also pay attention to their mineral balance and—in addition to vitamins—consume protein, calcium, and magnesium from external sources.
Older adults and vegans often lack important vitamins
Many people do not eat enough as they age. Their appetite wanes, as does their sense of taste. However, their need for nutrients—and thus for vitamins—remains the same. In particular, supplemental intake of folic acid and vitamins B12, C, and D is essential in old age. However, care should be taken with the dosage—one should not take too many or too few vitamin tablets.
When people think of a vegan diet, they often associate it with a healthy lifestyle. That’s not wrong, but it’s not entirely correct either, because many vegans suffer from a vitamin B12 deficiency. While this nutrient is found in some vegetables, grains, and legumes, the body can absorb vitamin B12 from meat much more efficiently. So anyone who chooses a vegan lifestyle would be well advised to compensate for the resulting deficiency—which, by the way, also affects iron levels—by taking the appropriate supplements.
