The common belief that “more vitamins equals better health” doesn’t hold up under expert scrutiny. Nutrition specialists say while vitamins are essential for bodily functions, taking them in excess — especially without medical guidance — doesn’t improve health and can sometimes cause harm.

Experts point out that fat-soluble vitamins like A, D, E and K can accumulate in the body and lead to toxic effects if consumed above recommended levels, since they aren’t readily excreted. In contrast, some water-soluble vitamins are eliminated through urine, but even here mega-dosing doesn’t offer added benefits and may strain metabolic systems.

Vitamins and supplements are meant to fill specific nutritional gaps — such as in cases of diagnosed deficiencies, certain life stages or clinical needs — not to serve as a substitute for a balanced diet rich in whole foods. Whole foods provide a wider spectrum of nutrients, fibre and bioactive compounds that support absorption and health in ways pills alone cannot.

Over-reliance on supplements can also lead to a false sense of security, potentially distracting from healthy habits like nutritious eating, hydration, sleep, and physical activity. Before starting any vitamin regimen, professionals recommend consulting a healthcare provider and, if possible, getting blood tests to tailor supplementation to actual needs rather than assumptions.