Pharmacist Warns Against Risks of Overusing Supplements

A leading pharmacist has issued a warning regarding the potential dangers of excessive and improperly combined dietary supplements. Hanna Yusuf, a prescribing pharmacist at Chemist4U, cautions that many individuals in the UK may be “over-stacking” their supplements without fully understanding the risks involved. This concern comes as people increasingly rely on supplements to address nutritional deficiencies that can arise from dietary challenges.

Yusuf emphasizes that while vitamins and minerals are essential for overall health, taking them in excessive amounts or combining them carelessly can lead to adverse reactions. “The intention behind supplements is usually good, but the execution often isn’t,” she stated. Many individuals inadvertently double up on vitamin D by taking both multivitamins and standalone products, or they consume high-dose vitamin C powders daily.

Understanding the Dangers of Common Supplements

The NHS recommends that adults in the UK take vitamin D from October to March to support mood, immunity, and energy levels during the darker months. However, Yusuf warns that excessive intake can raise calcium levels, potentially leading to symptoms such as nausea, confusion, and severe kidney damage in extreme cases. She advises sticking to a daily recommendation of 10 micrograms (400 IU) during winter and avoiding multiple products containing vitamin D unless directed by a healthcare professional.

Iron supplements are often used to combat fatigue and low energy, but Yusuf stresses that they can also lead to complications. “Excess iron can cause stomach pain, constipation, and may worsen nausea,” she warned. In some individuals, particularly those with conditions like haemochromatosis, iron overload can occur. Yusuf recommends that individuals consult a healthcare provider and obtain a blood test before self-prescribing iron supplements.

Another common supplement is omega-3, which many take for its heart health benefits. Yusuf notes that while omega-3 can be beneficial, it may increase bruising or bleeding, especially when taken at high doses in conjunction with blood thinners. She urges individuals to prioritize obtaining omega-3 from dietary sources, such as oily fish, and to choose high-quality supplements when necessary.

Guidelines for Safe Supplement Use

Magnesium is frequently consumed for its potential relaxation benefits, but Yusuf cautions that excessive amounts can lead to gastrointestinal issues and low blood pressure. She advises starting with food sources like nuts and leafy greens and consulting a pharmacist if considering supplementation, especially for those with kidney issues.

Vitamin C is another popular supplement aimed at boosting immunity. Yusuf warns that high doses can lead to gastrointestinal distress and may increase the risk of kidney stones. She encourages obtaining vitamin C from food sources, such as citrus fruits and berries, and advises against long-term high-dose usage.

The pharmacist concludes by highlighting the importance of simplicity and consistency in supplement intake. “If you don’t actually need them, they can be unnecessary at best, and harmful at worst,” she said. By following recommended guidelines and consulting healthcare professionals, individuals can ensure safer consumption of dietary supplements.

This guidance serves as a crucial reminder of the need for informed and cautious use of supplements in a world where dietary gaps are increasingly common.