NutriRx Vitamin D3
Vitamin D3 2,000 IU
Vitamin D3 2,000 IU to support calcium absorption, immune function, and hormone production. Vitamin D receptors are present throughout the endocrine system — deficiency (affecting 40%+ of Americans) impairs bone health, muscle function, and immune response.
Vitamin D3 2,000 IU
Bone density, immunity, hormone support
Why This Matters for Peptide Users
Rapid weight loss on GLP-1 therapy puts bone density at risk. D3 supports calcium absorption and bone mineral density. For growth hormone peptide users, D3 supports natural HGH production pathways and muscle protein synthesis.
Subscribe & save: $16/mo
30-Day Satisfaction Guarantee
Full refund if you're not satisfied
Third-Party Tested
Every batch tested for purity, potency, and heavy metals
Pharmaceutical-Grade Ingredients
Bioavailable forms chosen for maximum absorption
Found in These Stacks
GLP-1 Essential Stack
Active5 products · Semaglutide & Tirzepatide Support
GLP-1 Complete Stack
Active7 products · Full Spectrum GLP-1 Support
Growth Hormone Stack
Active5 products · CJC-1295 / Ipamorelin Support
Performance Stack
Active5 products · MK-677 & Athletic Support
Post Growth Hormone Maintain Stack
Maintain5 products · After GH Peptide Protocol
You Might Also Need
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any supplement regimen.