are vitamin b12 injections better than tablets The Advantages of Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine vitamin b12 injections vs pills

Individual results vary significantly based on diet, exercise, baseline weight, and adherence to protocol

It treats conditions such as diabetes and weight loss

Production of NAD+ declines sharply with age, leading to hidden cellular damage and visible symptoms like wrinkles, stubborn fat, cognitive fog, delayed recovery, and joint discomfort.[1][2][3] Emerging research suggests that this decline not only accelerates visible aging but also contributes to a cascade of metabolic and neurological issues, making NAD+ restoration a cornerstone of modern anti-aging protocols

High doses of B12, often used to treat deficiencies, may cause side effects such as headaches, nausea, diarrhea, fatigue or weakness, and tingling in the hands and feet