Study links high doses of Vitamin B supplements to increased lung cancer risk in men

A study has highlighted a significant health concern for men who consume high doses of vitamin B supplements, particularly vitamins B6 and B12. According to research reported by the Daily Mail and conducted by American scientists, these supplements, often marketed for their energy-boosting properties, may substantially increase the risk of lung cancer, especially among smokers.

Overview of the Vital Study

The research, known as the Vital study, involved an extensive review of 77,000 participants aged between 50 and 76. Conducted by researchers from The Ohio State University Comprehensive Cancer Centre, the study aimed to evaluate the impact of various vitamins and minerals on cancer risk. Over a decade, detailed data on the participants’ usage of vitamin B and the dosages consumed were analyzed.

Men taking high doses of vitamin B supplements may face increased risks of lung cancer as per a research study.

Findings on Vitamin B Intake and Cancer Risk

The findings were particularly stark for male smokers who consumed more than 20 mg of vitamin B6 per day and 55 mg of vitamin B12. These individuals were found to be three times more likely to develop lung cancer compared to those who did not take the supplements. Dr. Theodore Brasky, the lead author of the study, emphasized that men who used high doses of vitamin B supplements for over ten years had double the risk of developing lung cancer. For smokers, this risk increased three to four times.

Recommendations and Natural Sources of Vitamin B

Dr. Brasky strongly advised against the excessive use of vitamin B supplements, suggesting that the required amounts of these nutrients could be sufficiently obtained through diet alone. Natural sources of vitamin B complex include meat, fish, cheese, eggs, milk, and cereals. He highlighted the potential dangers of supplement overuse, particularly in doses far exceeding the UK’s National Health Service recommended daily allowances—1.4 mg per day for men and 1.2 mg per day for women for vitamin B6, and 1.5 mcg a day for vitamin B12.

Gender Differences in Supplement Risk

The study also noted that the increased cancer risk associated with high doses of vitamin B was not observed in women. However, further research is needed to assess whether similar risks apply to post-menopausal women.

This study serves as a crucial reminder of the potential risks associated with the overconsumption of dietary supplements, especially for individuals who might already be at increased risk due to factors like smoking. It underscores the importance of adhering to recommended dosages and relying on natural food sources for nutrient intake.