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Suggested Use Levels: .3-2%

Many people who have had weight loss surgery cannot get enough of these vitamins, especially vitamin B12

Alcohol doesn't directly interact with Vitamin B12, so there aren't major safety concerns

Insulin is a key hormone that regulates blood sugar control

Frequently asked questions Early warning signs of B12 deficiency include unexplained fatigue, tingling or numbness in your hands and feet, difficulty concentrating, and mood changes

While a blood test is the definitive way to diagnose a clinical deficiency, it isnt always required to start B12 injections for general wellness purposes