A report published in the Journal of Clinical Oncology shows that male smokers who took high dose vitamin B6 and B12 supplements – often marketed as energy boosters and present in energy drinks – had three to four times the risk of developing lung cancer, compared to men who did not take the vitamin B supplements.
…
Vitamin B supplements are marketed as boosting energy. Often they come at extraordinarily high doses. The recommended daily allowance for vitamin B6 for men is only about one and a half milligrams, and for vitamin B12, it’s less than two and a half micrograms per day.
…
Men who had taken a high dose of vitamin B6 greater than 20 mg per day for ten years (the recommended daily allowance is 1.7mg/day) were at an 80% higher risk of lung cancer.
Share this article
When it came to Vitamin B12, those who had taken greater than 55 micrograms per day (RDA is 2.5 micrograms per day) were at a 98% greater risk of lung cancer.
…
Vitamin B6 and B12 are involved in the so-called “one carbon pathway” that is crucial for synthesizing and regulating DNA. Exposure to such high levels could disrupt the regulation of cell growth and lead to cancer.
The GLP aggregated and excerpted this blog/article to reflect the diversity of news, opinion, and analysis. Read full, original post: High dose vitamin B supplements linked to lung cancer in smokers
