Micronutrients & recovery
GLP-1 receptor agonist (GLP-1RA) therapy is associated with clinically relevant risks of protein, vitamin, and mineral deficiencies due to reduced caloric and nutrient intake.
If you are taking a GLP-1 medication like semaglutide or tirzepatide, you are likely eating less, which means you might not be getting enough vitamins and minerals. You should prioritize nutrient-dense foods and discuss baseline blood testing for Vitamin D, B12, Iron, and Calcium with your doctor. Do not assume that because this is a medication and not surgery, you are exempt from nutritional monitoring.
GLP-1RAs are associated with clinically relevant risks of protein, vitamin, and mineral deficiencies.
Why this rating
Based on a narrative review of observational studies, retrospective cohorts, and some RCTs, but lacking large-scale long-term RCTs on supplementation outcomes.
Source
Macronutrient, Micronutrient Supplementation and Monitoring for Patients on GLP-1 Agonists: Can We Learn from Metabolic and Bariatric Surgery?
Rhea Sibal et al. · Nutrients · 2025
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