From grimoire
Evaluates dietary supplements for athletes using the AIS framework (A-D tiers) to identify evidence-backed options, avoid banned substances, and prevent wasted spending.
How this skill is triggered — by the user, by Claude, or both
Slash command
/grimoire:apply-supplementation-protocolThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Select and dose dietary supplements based on the evidence hierarchy: confirm strong scientific support exists, verify the product is third-party tested, and match the supplement to the athlete's sport and phase.
Select and dose dietary supplements based on the evidence hierarchy: confirm strong scientific support exists, verify the product is third-party tested, and match the supplement to the athlete's sport and phase.
Adopted by: AIS (Australian Institute of Sport) developed the most widely cited evidence-based supplement framework globally, now adopted by multiple national sports institutes. WADA, IOC, and national anti-doping organizations use evidence-based supplement guidance to help athletes navigate the contamination risk of the supplement industry. Impact: Maughan et al. (2018) IOC Consensus Statement found that only a small number of supplements have sufficient evidence to justify use in high-performance sport: creatine, caffeine, nitrate/beetroot juice, beta-alanine, vitamin D (if deficient), and iron (if deficient). The same review found that approximately 15% of supplements contain undeclared substances, and contaminated supplements account for 15-25% of inadvertent doping violations. A positive drug test can end a career regardless of intent.
Use the AIS tiered framework to evaluate any supplement:
| Tier | Classification | Description | Examples |
|---|---|---|---|
| A | High evidence | Strong RCT evidence; approved for athlete use | Creatine, caffeine, nitrate, beta-alanine, vitamin D, iron (if deficient), sports foods |
| B | Emerging evidence | Promising but insufficient evidence; individual monitoring | HMB, Vitamin C+E (timing concerns), tart cherry, quercetin |
| C | Insufficient/no evidence | No benefit shown in RCTs; not recommended | Glutamine, BCAAs (when protein intake adequate), most proprietary blends |
| D | Banned/harmful | Prohibited or unsafe | Stimulants, prohormones, SARMs, EPO, growth hormone |
Only Tier A supplements should be used routinely. Tier B: individual assessment with sport scientist. Tier C/D: avoid.
Creatine monohydrate:
Caffeine:
Dietary nitrate (beetroot juice):
Beta-alanine:
Supplement contamination is the primary risk for athletes subject to anti-doping:
Common nutrient deficiencies in athletes that masquerade as performance problems:
Test (blood work) before supplementing. Supplementing nutrients without deficiency provides no benefit and can cause harm at high doses.
All athletes subject to anti-doping must:
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