B team.

This article discusses the importance of B vitamins for sustaining performance and preventing burnout in runners. B vitamins are a family of interconnected nutrients that are crucial for runners as they help with energy production and red blood cell production. Low levels of B vitamins can negatively impact training, leading to fatigue and slower recovery. It is recommended to consume a variety of unprocessed foods to get enough B vitamins, but vegan runners may need to supplement with vitamin B12 due to its absence in plant-based foods. Older runners may also have lower levels of vitamin B12 due to changes in digestion. Taking B vitamins in the morning is recommended as they are involved in energy production and are water soluble. Bright yellow urine is a harmless side effect of excess B vitamins being excreted from the body. The article also provides recommendations for B vitamin supplements. [Extracted from the article]