side effects of b12 injections in dogs What Does Vitamin Do for Dogs? — Paramount Pet Health FDA warns of deaths and

During aging, metabolic function gradually declines, leading to insulin resistance, fat accumulation, and insufficient energy metabolism

This is due to the nature of vitamin B12 absorption

If youve taken a vitamin B supplement recently, you may have noticed some changes to your urine color

In contrast, oral vitamin B12 supplements need to pass through your stomach acid and digestive system, and their absorption can be less reliable, especially if there are absorption issues

Research shows that low levels of B vitamins, particularly B6, folate (B9), and B12, are linked to symptoms of anxiety, irritability, and depression