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Another study comparing groups of severely obese versus non-obese patients showed that 34.1% of people in the obesity group had vitamin B12 deficiency, compared with 12.5% in the control (non-obese) group

Serious side effects are rare

While some patients report improvements in skin clarity or texture after B12 shots, these changes are usually most noticeable when a deficiency existed beforehand

While effective for some, these approaches often fall short for individuals with underlying metabolic challenges, hormonal imbalances, or age-related barriers

Vitamin B12 injections are not weight-loss treatments

The body uses B12 slowly over time, with excess amounts stored for future use, allowing the vitamin to remain in the body for weeks or even months