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It earned FDA approval, generated billions in revenue, and became the most talked-about weight management compound in modern history

Researchers are examining whether altered NNMT activity affects nicotinamide metabolism, NAD-related pathways, methyl-donor balance and selected metabolic processes

People with low B12 may experience: Persistent fatigue or low energy Weakness Brain fog, concentration issues, or memory changes Low mood or irritability Pins and needles, numbness, or nerve-type sensations Mouth ulcers or a sore tongue Paleness or shortness of breath (if anaemia is present) Some symptoms can become more serious if deficiency is prolonged, particularly neurological symptoms

Vitamin B12 benefits: what does vitamin B12 do