The INA health library
Evidence-based articles reviewed by licensed physicians.
The Complete Guide to Glp-1 Weight Loss Medications in 2026
Everything you need to know about the latest generation of GLP-1 receptor agonists - from semaglutide to tirzepatide. We cover clinical evidence, pricing changes, and what to expect from your treatment journey.
What Is Semaglutide? Everything You Need to Know
A comprehensive look at how semaglutide works, who qualifies for treatment, and what clinical trials reveal about its long-term effectiveness for weight management.
NAD+ and Aging: What the Research Actually Says
Separating hype from evidence - we review the latest peer-reviewed studies on NAD+ supplementation and its role in cellular aging and energy metabolism.
GLP-1 Side Effects: A Complete Medical Guide
Understanding the most common side effects of GLP-1 receptor agonists, how to manage them, and when to contact your prescribing physician.
Sermorelin vs HGH: Which Peptide Is Right for You?
Comparing two popular peptide therapies for growth hormone optimization - efficacy, safety profiles, cost, and who benefits most from each approach.
How Glutathione Supports Your Immune System
Often called the body's master antioxidant, glutathione plays a critical role in immune defense. Here's what the science says about supplementation.
B12 Injections vs Oral Supplements: The Absorption Difference
Not all B12 is created equal. We break down bioavailability, absorption rates, and why injectable B12 may be more effective for certain patients.
Tirzepatide vs Semaglutide: Comparing GLP-1 Medications
Two leading GLP-1 medications head-to-head. We compare clinical outcomes, side effect profiles, dosing schedules, and cost considerations for 2026.
The Science of NAD+ Decline After 40
NAD+ levels drop significantly with age. We explore the biological mechanisms behind this decline and evidence-based strategies to support healthy levels.
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All content is reviewed by licensed healthcare professionals. This information is educational and not a substitute for professional medical advice. Always consult your physician before starting any new treatment.