Walk into any pharmacy, and you’ll find shelves packed with multivitamins promising stronger immunity, healthier skin, better energy, and improved overall health. These colourful bottles often seem like an easy shortcut to good nutrition. But do we really need them, or are they, as some people jokingly say, just “expensive urine”?
Our bodies require vitamins and minerals in small amounts to carry out hundreds of essential functions. These nutrients help produce energy from food, build red blood cells, support the immune system, maintain healthy bones, protect vision, and keep the nervous system working properly. The best source of these nutrients is a balanced diet that includes fruits, vegetables, whole grains, dairy products, legumes, nuts, and lean proteins. Such foods also provide fibre, antioxidants, and other beneficial compounds that supplements cannot fully replicate.
The nickname “expensive urine” comes from the way our bodies handle certain vitamins. Vitamins such as vitamin C and the B vitamins are water-soluble, meaning they are not stored in large amounts. Once your body absorbs what it needs, the excess is filtered by the kidneys and excreted in urine. In many healthy people who already consume a nutritious diet, taking extra amounts of these vitamins offers little additional benefit.
However, not all vitamins are treated the same way. Vitamins A, D, E, and K are fat-soluble, meaning they can be stored in the liver and body fat. Unlike water-soluble vitamins, these can build up over time if taken in excessive amounts. Very high doses, especially without medical supervision, may increase the risk of side effects and even toxicity.
This does not mean multivitamins are useless. They can play an important role for people with specific nutritional needs. Pregnant women are advised to take folic acid to reduce the risk of certain birth defects. Older adults may require extra vitamin B12 because absorption decreases with age. People with restrictive diets, nutrient deficiencies, digestive disorders, or medical conditions that interfere with nutrient absorption may also benefit from supplements prescribed by a healthcare professional.
So, should everyone take a multivitamin? Current research suggests that for most healthy people who eat a varied and balanced diet, routine multivitamin use provides little measurable benefit. Supplements are most valuable when they correct a genuine deficiency or meet increased nutritional needs.
A multivitamin is best viewed as a supplement, not a substitute, for healthy eating. While it can help fill nutritional gaps when necessary, no pill can replace the rich combination of vitamins, minerals, fibre, and thousands of natural plant compounds found in wholesome foods. In the end, the healthiest investment is still a balanced diet rather than relying on a bottle of vitamins.
