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Individual Response and Tolerance Some users experience unique responses that may necessitate timing adjustments: Common Individual Variations: Energy level changes (stimulation vs

Vitamin B12 Deficiency Causes of vitamin B12 deficiency include difficulty absorbing vitamin B12 from food, lack of intrinsic factor (e.g., because of pernicious anemia), surgery in the gastrointestinal tract, prolonged use of certain medications (e.g., metformin or proton pump inhibitors), and dietary deficiency

If your cat has too much B12 in them, they just pee it out

Loss of ABHD15 Impairs the Anti-lipolytic Action of Insulin by Altering PDE3B Stability and Contributes to Insulin Resistance