---
id: sports-nutrition
title: "Sports Nutrition: Fueling Performance and Recovery"
schema_type: Article
category: sports
language: en
confidence: high
last_verified: "2026-05-24"
created_date: "2026-05-24"
generation_method: ai_assisted
ai_models:
  - claude-opus
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-sp-sn-001
    statement: "IOC (2024): 1.2-2.0g protein/kg/day for athletes, distributed across meals."
    source_title: "Thomas et al. AND/ACSM Position: Nutrition and Athletic Performance (MSSE 2016)"
    source_url: https://doi.org/10.1016/j.jand.2015.12.006
    confidence: high
  - id: fact-sp-sn-002
    statement: Carb loading (10-12g/kg/day, 36-48h pre-event) ↑ glycogen 50-100%, extends endurance ~20% (Bergström 1967).
    source_title: Jeukendrup & Gleeson, Sport Nutrition 4th ed. (Human Kinetics 2024)
    source_url: https://us.humankinetics.com/products/sport-nutrition-4th-edition
    confidence: high
  - id: fact-sp-sn-003
    statement: "Creatine: most researched supplement, strong safety, ↑ high-intensity capacity 10-20% (ISSN 2017)."
    source_title: Kreider et al. ISSN creatine position stand (JISSN 2017)
    source_url: https://doi.org/10.1186/s12970-017-0173-z
    confidence: high
completeness: 0.9
known_gaps:
  - Personalized nutrition based on genetic profiles
  - Microbiome manipulation for performance
disputed_statements:
  - statement: No major disputed statements identified
primary_sources:
  - title: Advanced Sports Nutrition, 3rd Edition
    type: textbook
    year: 2020
    url: https://www.humankinetics.com/advanced-sports-nutrition/
    institution: Human Kinetics
  - title: "ISSN Position Stand: Nutrient Timing"
    type: standard
    year: 2023
    url: https://jissn.biomedcentral.com/
    institution: ISSN
secondary_sources:
  - title: Advanced Sports Nutrition (Benardot, 3rd Edition)
    type: textbook
    year: 2021
    authors:
      - Benardot, Dan
    institution: Human Kinetics
    url: https://us.humankinetics.com/products/advanced-sports-nutrition-3rd-edition
  - title: Nutrition and Athletic Performance (ACSM/AND/DC Joint Position Statement)
    type: journal_article
    year: 2016
    authors:
      - Thomas, D. Travis
      - Erdman, Kelly Anne
      - Burke, Louise M.
    institution: Medicine & Science in Sports & Exercise
    url: https://doi.org/10.1249/MSS.0000000000000852
  - title: "IOC Consensus Statement: Sports Nutrition (International Olympic Committee)"
    type: journal_article
    year: 2024
    authors:
      - IOC Expert Panel
    institution: International Journal of Sport Nutrition & Exercise Metabolism
    url: https://doi.org/10.1123/ijsnem.2024-0062
  - title: The Science of Nutrition (Thompson, Manore, Vaughan, 5th Edition)
    type: textbook
    year: 2022
    authors:
      - Thompson, Janice J.
      - Manore, Melinda
      - Vaughan, Linda
    institution: Pearson
    url: https://www.pearson.com/en-us/subject-catalog/p/science-of-nutrition/P20000000K1Z
updated: "2026-05-24"
---
## TL;DR
Sports nutrition optimizes timing, quantity, and composition of nutrient intake to maximize training adaptations, competition performance, and recovery.

## Core Explanation
Macronutrient targets vary by sport: endurance athletes need 8-12 g/kg/day carbs; strength athletes need 1.6-2.2 g/kg/day protein. Fat provides essential fatty acids. Glycogen is the limiting fuel for high-intensity exercise — depletion (hitting the wall) occurs at ~2,000 kcal stored glycogen.

## Detailed Analysis
Hydration: as little as 2% body mass loss impairs cognitive and physical performance. Electrolyte replacement (sodium 500-700 mg/L) needed for exercise >2 hours. Caffeine (3-6 mg/kg) is the most researched legal ergogenic aid, improving endurance by 3-5%.

## Further Reading
- IOC Consensus Statement: Sports Nutrition
- Gatorade Sports Science Institute
- ISSN Conferences and Position Papers