#VitaminSupplements

A new wave of international medical research and expert commentary is urging consumers to approach vitamin supplements—such as vitamin B12 and iron—with greater caution, as excessive or unnecessary supplementation may pose health risks rather than provide the expected health benefits. This renewed scrutiny, recently highlighted by a leading health expert on The Economic Times, has direct implications for Thai consumers amid the booming supplement industry and rising health consciousness.

Vitamins and minerals play essential roles in human health, but recent studies show that indiscriminate use, particularly of vitamin B12 and iron, may carry hidden dangers. In Thailand, where convenience stores, pharmacies, and online marketplaces are flooded with a dazzling array of supplement brands, the prevailing belief that “more is better” has fueled a multi-billion-baht industry. However, according to recent research summaries published in journals like the New England Journal of Medicine and JAMA, the blanket use of supplements without clear medical need may contribute to adverse effects, with iron and vitamin B12 topping the list of potentially problematic substances when overused.

In a compelling case that underscores the potential hazards of unregulated dietary supplements, Jenny Ramirez, a Texas resident, suffered liver failure seemingly linked to over-the-counter vitamins intended for hair, skin, and nail health. Her story has sparked a conversation about the safety of these supplements, highlighting issues that are relevant not only in the United States but also in Thailand and globally.

Jenny, from Fort Worth, Texas, embarked on a remarkable weight loss journey but faced unexpected challenges, including hair loss. To counteract this, she began taking a vitamin supplement advertised to enhance hair, skin, and nail health. Unfortunately, she soon noticed yellowing of her skin and eyes - a sign of liver distress. Medical tests revealed liver failure, which her doctor attributed to methylsulfonylmethane (MSM), a common ingredient in her supplements. Although MSM is generally considered safe and even beneficial, in some individuals — particularly those with pre-existing liver conditions — it can have adverse effects.