A new study reveals that increasing vitamin B12 levels may reduce testosterone deficiency in men struggling with infertility, offering hope for improved reproductive health through simple dietary changes. Study: Vitamin B12 Is Associated with Higher Serum Testosterone Concentrations and Improved Androgenic Profiles Among Men with Infertility . Image Credit: Tatjana Baibakova / Shutterstock In a recent study published in The Journal of Nutrition , researchers examined the cross-sectional associations between serum levels of vitamin B 12 and male reproductive hormones.
The study provides new insights into how micronutrients may influence hormonal profiles in men with infertility. Infertility is the inability to achieve pregnancy following one year of consistent unprotected sexual intercourse. It affects around 16% of North American couples; male factor infertility accounts for about 30% of cases.
Male fertility decline, characterized by hypogonadism and diminished sperm quality, has become a serious concern. Studies have identified significant reductions in testosterone levels in males over the past few decades, independent of age. Genetic polymorphisms, endocrine dysfunction, and physical impairments have traditionally been deemed the primary causes of male infertility.
However, recent studies have highlighted the role of lifestyle factors, including smoking, nutrition, environmental toxins, and sleep disruptions. Diets with more vegetables and fruits and less fat, meat, proce.