retatrutide dosing guide vs tirzepatide dosage chart: complete comparison for every dose Retatrutide Dosing Schedule: Proven 2026

GLP-1 medications don't directly deplete vitamins, but reduced food intake combined with slower digestion can lower levels of Vitamin B12, Vitamin D, iron, calcium, and fat-soluble vitamins

Future trials or post-marketing data will need to establish whether retatrutide allows dose reduction for maintenance without significant weight regain

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In Phase 2 trials, retatrutide was administered as a once-weekly subcutaneous injection using a structured dose escalation from 2 mg up to 12 mg over 12 weeks

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