Doses above ~500 mcg/day are not generally linked to added benefit in the reference literature, and none of this reflects proven human efficacy
Here are some of the signs of B12 deficiency to look out for: Numbness, tingling, or a pins and needles feeling in the hands or feet (even if slight or minor) Falling or losing your footing more than usual or without reason Not being able to stay balanced Stiff muscles Vision changes Symptoms of psychosis (e.g., hallucinations, paranoia, disorganized thoughts, or schizophrenia-like symptoms) Severe or unusual tiredness Memory issues Sometimes, these symptoms can develop gradually

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Effects of dietary calcium on adipocyte lipid metabolism and body weight regulation in energy-restricted aP2-agouti transgenic mice
Lyophilized Format This blend ships in lyophilized (freeze-dried) form
Component 1: Sterile Water (USP Grade) Component 2: Benzyl Alcohol (0.9% v/v) Total Quantity: Available in 10ml, 20ml, or 30ml Vials Grade: USP / Ph.Eur Research Grade Quality Assurance Sterility: 0.22 micron filtered and autoclave sterilized