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Current practice converges around three tiers: The split-dose protocol (250 mcg morning, 250 mcg 3+ hours post-meal in the evening) creates two daily windows of lipolytic stimulation

If it is set lower, you diagnose less people with deficiency, and you have less people treated (or investigated further) who dont have deficiency

In a head-to-head trial against a full-strength GLP-1 drug, tirzepatide reduced food craving without changing measured restraint. Slower stomach emptying also makes smaller portions feel filling for longer. People whose eating was driven by stress, reward, or constant mental effort often describe the quiet as relief

The symptom list overlaps almost perfectly with the symptoms people blame on "high B12" which is part of why this connection often gets missed