What Vitamin slows metabolism?
Lack of magnesium can also slow down your metabolism. This supplement plays a major role in your body, helping with metabolic function and over 300 enzyme reactions, according to Health Line. What vitamins affect your metabolism? Calcium, vitamin B5, vitamin B6, vitamin B12, vitamin B complex, and vitamin C: These provide nutrients that help you function better all around. These also improve metabolism to assist your weight loss: Green tea: Caffeine and catechins in green tea and other products may help with weight management.