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Vitamin B12 Fights Aging and Boosts Muscle
8 May
Summary
- Vitamin B12 may protect against accelerated aging and disease.
- Low B12 levels are associated with reduced muscle mass and strength.
- Adults need 2.4 micrograms of B12 daily; pregnant women need 2.6 micrograms.

Vitamin B12, known for its role in supporting blood cells, nerve function, and cognitive health, is now understood to offer further benefits. Recent research indicates it may help protect the human body from accelerated aging and disease.
A study focusing on B12 deficiencies in mice revealed the vitamin's capacity to combat metabolic stress and strengthen the immune system. This discovery holds significant implications, especially considering that approximately 10 million people in the United States may not be getting enough of this vital nutrient.
Beyond its protective effects, sufficient B12 intake appears to contribute to fitness goals. Low B12 status has been associated with diminished muscle mass and strength, which are crucial for injury prevention and slowing bone loss.
Experts recommend that adults consume around 2.4 micrograms of vitamin B12 daily. Women who are pregnant or breastfeeding require slightly more, 2.6 micrograms, due to B12's importance for fetal development. Low B12 levels have even been linked to an increased risk of preterm birth.
Rich food sources of B12 include clams, salmon, Greek yogurt, and eggs. For those following plant-based diets, fortified cereals and soy milk provide this nutrient. Supplements are also available, offering doses ranging from 50 to 5,000 micrograms.