What role does Folsäure play in weight loss?

Folic acid (vitamin B9) is essential for DNA synthesis, cell division, and red blood cell formation. While it supports overall metabolic health, there is no strong evidence that folic acid directly promotes weight loss. Some observational studies link low folate levels to higher body weight, but this may reflect poor diet quality rather than a causal relationship. Folic acid deficiency can cause fatigue, which might reduce physical activity, but supplementation in the absence of deficiency does not enhance weight loss. MyBody-X offers blood tests for folate status and genetic analyses (e.g., MTHFR variants) that affect folate metabolism. These can identify individuals who may benefit from optimized intake, but they are not weight-loss tools. A balanced diet rich in leafy greens, legumes, and fortified grains typically provides sufficient folate. High-dose supplements without medical need carry no proven benefit and may mask vitamin B12 deficiency. For weight management, focus on evidence-based strategies: caloric balance, regular exercise, and behavioral changes.