“Taking a multivitamin daily is essential for good health.”

The idea that a daily multivitamin is crucial for well-being stems from the early 20th century, a time when nutritional science was rapidly advancing. The discovery of essential vitamins and their profound ability to prevent debilitating diseases like scurvy, rickets, and pellagra created a powerful perception of these compounds as "miracle cures." This belief was further solidified during periods like World War II, when widespread malnutrition highlighted the need for supplemental nutrients, leading to the introduction and aggressive marketing of multivitamins as a daily health staple.

Despite this historical context, modern scientific research largely debunks the notion that healthy individuals consuming a balanced diet need a daily multivitamin. Extensive studies have found no evidence that regular multivitamin use lowers the risk of death or prevents chronic illnesses such as cancer, heart disease, or stroke. The persistent belief in their necessity is partly due to the historical "halo effect" from early successes and the ongoing, often misleading, marketing by the supplement industry, which is not held to the same rigorous efficacy standards as pharmaceuticals. Many people seek an "