Sweden survey reveals risks in rising dietary supplement consumption

A recent survey involving over 4,200 participants in Sweden highlights growing concerns regarding the consumption of dietary supplements. Sales at Apotek Hjärtat have increased by 78.9 percent over the last four years, contributing to a broader trend where supplement sales have tripled over the past decade according to industry data.

Research indicates significant gaps in consumer knowledge. Approximately 21 percent of users perceive no risks in supplement use, and roughly 8 percent have taken doses exceeding recommended levels. This risk is higher among young adults aged 18–29, where 12 percent have overdosed. Annika Svedberg, chief pharmacist at Apotek Hjärtat, warns that overdosing on iron or fat-soluble vitamins like D and E can lead to serious consequences, including kidney damage, poisoning, and heart rhythm disturbances.

Furthermore, many consumers use supplements to prevent illness or address suspected deficiencies without medical consultation. Only 12 percent of users understand how supplements interact with other supplements, and only 15 percent are aware of potential interactions with prescription medications. Notable risks include interactions between antibiotics and minerals such as iron, magnesium, and calcium, as well as antacids interfering with magnesium.