Vegetarian and vegan sources of B12 can include fortified cereals, plant milks, bread, and nutritional yeast
It plays a role in collagen production, wound healing, and even how your body absorbs iron
By dosage, the mean changes were: 500 mcg: 127% 750 mcg: 176% (single study) 1,000 mcg: 280% 1,500 mcg: 310% 2000 mcg: 260% 5,000 mcg: 62% While 1,500 mcg of vitamin B12 showed the highest average increase, the effect plateaued or declined at higher doses, suggesting a possible saturation of absorption pathways
Hence, it is crucial to maintain healthy vitamin B12 levels to lower the risk of heart disease
However, while B12 shots are safe for many, they may not be suitable for everyone