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Vegan or vegetarian diet B12 is found almost exclusively in animal products

CDC adds vaccination can make symptoms less severe if infection occurs

The influence of bacteria and irritation in the initiation of periodontal disease in germfree and conventional rats

Some research suggests that vitamin B12 may have specific benefits for endurance athletes, such as: Improved performance: Some studies have found that vitamin B12 supplements can improve exercise performance in athletes, particularly when taken in combination with other B-vitamins

Vitamins, minerals and nutrients such as carotenoids, vitamin A and C, selenium, bioflavonoids and glutathione act as antioxidants

Coester B, Koester-Hegmann C, Lutz TA, Le Foll C