Compare Supplements
(skip the boring stuff, go straight to the comparison tool)How to Compare Supplements
When comparing supplements, you need to look at two measurements: the supplement's effectiveness rating and its confidence rating (how many studies its effectiveness rating is based on). If a supplement scores high but is only backed up by one or two studies, we can't be certain that the grade is valid.
The higher a supplement's confidence rating, the more certain we are about the validity of the supplement's effectiveness rating. Ideally, you want a high score (3 out of 3) that's also backed up by a high confidence rating.
Effectiveness Ratings
Supplements receive a grade based on conclusions of peer reviewed research articles. Those grades are then averaged to give you a broad picture on what the supplement is and isn't capable of doing.
This page allows you to compare the efficacy of supplements for a specific claim. To begin, click a claim below. On the next page, you'll be able to select the supplements to compare.
How to Use This Supplement Comparison Tool
First, select a claim below. On the next pages, you'll be able to select two supplements to compare. You'll then see how the evidence compares between them for the selected claim.
Step 1: Select a Claim from Below
Body Composition (weight, muscle, body fat)
- decrease body fat
- increase fat burning
- increase muscle mass
- increase weight loss
- maintain muscle mass during weight loss
Cardiovascular Health
- improve heart rate variability
- increase cardiac output
- increase HDL (good) cholesterol levels
- lower blood pressure
- lower LDL (bad) cholesterol levels
- lower total cholesterol levels
- lower triglyceride levels
Digestive Health
Energy Balance (calories in & calories out)
General Health
- improve insulin sensitivity
- improve liver function
- improve sleep quality
- increase bone density
- increase total sleep time
- lower fasting glucose
Hormone Function
- decrease cortisol levels
- decrease levels of somatostatin (growth hormone inhibiting hormone)
- decrease testosterone
- increase levels of growth hormone
- increase levels of growth hormone releasing hormone
- increase luteinizing hormone
- increase testosterone
Immune Health
- improve immune function
- prevent urinary tract infections
- reduce duration of the common cold
- reduce frequency of the common cold
- reduce severity of the common cold
Mental Health
Performance
- decrease fatigue
- improve agility
- improve cardiovascular endurance
- improve cycling performance
- improve cycling sprint performance
- improve flexibility
- improve focus
- improve high-intensity interval training (HIIT) performance
- improve hydration
- improve muscular endurance
- improve rowing performance
- improve running performance
- improve sports performance
- improve sprint performance
- improve swimming performance
- increase alertness
- increase ATP levels
- increase pump (muscle swelling)
- increase strength