Supplements That Actually Work
Norton's evidence tiers cut the supplement aisle down to the few things with real human data, and name what to stop wasting money on.
Norton is known for ranking supplements strictly by evidence and for publicly dropping things when the data turns, as he did with BCAAs once studies showed they add nothing when protein is adequate. His tier-one list is short: creatine, whey protein and caffeine. A second tier has reasonable evidence for specific uses. Almost everything else is marketing. The point of this page is honesty: spend on the proven few, skip the rest, and remember supplements are a small lever on top of training, protein and sleep.
Why it works▼
Creatine monohydrate
The most effective, most studied ergogenic aid: more strength, power, lean mass, and even cognition under stress. Safe for healthy kidneys; a small creatinine rise is a marker artifact, not damage.
Whey protein (if you struggle to hit protein)
Gold standard for the leucine threshold and muscle protein synthesis, and it makes adequate protein easy.
Caffeine before training
One of the most reliable acute boosters of strength, power, endurance and alertness, and it lowers perceived effort.
Use situational add-ons only if they fit
Decent but smaller and use-specific evidence; optional, not essential.
Cover real dietary gaps
Fixing genuine deficiencies beats chasing exotic compounds.
Skip the hyped extras
These fail in good trials; the honest move is to not sell or take them.
- Anyone overwhelmed by the supplement aisle
- People who want to spend only on what works
- Lifters optimising the basics
- Skeptics who want the evidence, not hype
- Supplements are a small lever; training, protein, sleep and consistency do the heavy lifting
- Creatine is safe for healthy kidneys, but check with a doctor if you have kidney disease
- Caffeine and pre-workouts can disrupt sleep and raise heart rate; mind your dose and timing
- Third-party test anything you buy (NSF or Informed Sport); the supplement industry is loosely regulated
- We may earn a commission on products bought through this page; the proven items here are available from many brands
- Educational only, not medical advice
- July 3, 2026 Protocol published.
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Not medical advice. This page is for education only and is not a substitute for professional medical care. Consult a qualified clinician before changing your health routine.
Independent curation. YourProtocol.ai is an independent platform. This protocol is based on the publicly available work of Layne Norton and is not created, reviewed, endorsed by, or affiliated with Layne Norton or PhD · Nutritional Sciences · BioLayne.