Supplement Guides
Learn to Supplement Intelligently
Evidence-based guides to help you read labels, build your stack, interpret lab results, and make smarter supplement decisions.
How to Read a Supplement Facts Panel
The complete guide to understanding every line on a supplement label before you buy.
What Does 'Third-Party Tested' Actually Mean?
Not all supplement testing is equal. Here's what certifications actually verify — and what they don't.
How to Build a Supplement Stack for Your Health Goals
A systematic approach to choosing supplements based on your biology — not based on what's trending.
Understanding Your Lab Results: What Biomarkers Tell You About Your Supplement Needs
The biomarkers that most directly reveal supplement gaps — and how to interpret them before spending a dollar.
Magnesium Forms Explained: Glycinate, Citrate, Oxide, Malate, Threonate
The form of magnesium determines bioavailability, tolerability, and which goal it actually serves.
The Most Underdosed Supplements on the Market (And How to Spot Them)
Many popular supplements are sold at doses too low to match clinical evidence. Here's how to spot the gap.
How the SuppsBuddy Stack Score Is Calculated
The methodology behind the single most actionable number in your supplement routine.
Supplement Timing: When to Take What — and Why It Matters
The right supplement at the wrong time can reduce absorption by 50% or disrupt sleep and hormones.
Quality vs. Price: Why Expensive Supplements Aren't Always Better
Price is a poor proxy for supplement quality. Here's what actually drives cost — and when premium pricing is justified.
Bioavailability Explained: Why the Form of a Supplement Matters More Than the Dose
Bioavailability is the percentage of a nutrient that actually reaches your bloodstream. For many supplements, the number is far lower than you think.
Magnesium Glycinate vs. Citrate: Which Form Is Right for You?
Two popular, well-absorbed forms of magnesium serve different goals — here's how to choose.
Magnesium Oxide vs. Glycinate: Why the Cheap Form Falls Short
Magnesium oxide dominates supplement shelves, but its ~4% bioavailability means most of the dose is wasted.
Vitamin D3 vs. D2: Why Form Matters for Supplementation
Both are called vitamin D, but D3 (cholecalciferol) is significantly more effective at raising serum levels.
CoQ10 vs. Ubiquinol: Understanding the Two Forms
CoQ10 and ubiquinol are two forms of the same compound — but their absorption profiles and ideal use cases differ meaningfully.
Fish Oil vs. Omega-3: What the Label Isn't Telling You
Total fish oil grams tell you almost nothing useful. EPA and DHA content is the only number that matters clinically.
Creatine HCl vs. Monohydrate: Is the Premium Form Worth It?
Creatine monohydrate has 30+ years of clinical evidence. HCl is newer, smaller-dosed, and significantly more expensive.
Chelated vs. Non-Chelated Minerals: Why Binding Matters for Absorption
Chelation bonds minerals to amino acids, improving absorption and reducing competition with other minerals and dietary compounds.
How to Identify a Low-Quality Supplement in Under 60 Seconds
Five label signals that reveal poor-quality supplements before you spend a dollar.
Supplements for Energy: What the Evidence Actually Supports
Most energy supplements are stimulants. Genuine energy support addresses the metabolic, nutritional, and mitochondrial roots of fatigue.
Supplements for Sleep: What Works, What Doesn't, and the Right Doses
Sleep-support supplements work through different mechanisms — matching the right compound to your specific sleep issue dramatically improves outcomes.
Put this knowledge to work.
SuppsBuddy applies everything in these guides automatically — scoring every product you scan against clinical evidence.
Get SuppsBuddyApp Store & Google Play