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Medical & Safety Disclaimer

Not medical advice

Stacked AI Fitness Tracker is a fitness and nutrition coaching tool. It is not a medical device, and it is not a medical provider. The AI guidance, recovery scores, training suggestions, and nutrition recommendations it produces are informational only. They are not medical advice, diagnosis, or treatment, and they are not a substitute for the judgment of a qualified professional.

Talk to a professional first

Consult a qualified clinician — such as a doctor, registered dietitian, or physical therapist — before starting any new training or nutrition program. This is especially important if you have an existing medical condition or injury, are pregnant, or take any medication.

Listen to your body

Stop exercising and seek medical care if you experience pain, dizziness, chest pain, shortness of breath, or any other warning sign. Do not push through symptoms on the basis of anything the app suggests.

Estimates are approximations

Figures such as calories, macronutrients, and recovery or readiness scores are estimates. They are calculated from imperfect data and can be wrong. Treat them as rough guidance rather than precise measurements.

Your decisions, your responsibility

You are responsible for your own training and dietary decisions. By using Stacked AI Fitness Tracker you agree that you do so at your own risk and that you will use your own judgment, in consultation with appropriate professionals, when acting on anything the app provides.

For more on how we handle your data, see our Privacy Policy. If you have questions or need help, visit Support.

Sources & citations

The nutrition and training guidance in Stacked AI Fitness Tracker is informed by published, peer-reviewed research. Key references include:

  • BMR calculation — Mifflin MD, St Jeor ST, et al. “A new predictive equation for resting energy expenditure in healthy individuals.” American Journal of Clinical Nutrition, 1990; 51(2):241–247.
  • Activity multipliers — Frankenfield D, Roth-Yousey L, Compher C. “Comparison of predictive equations for resting metabolic rate.” Journal of the American Dietetic Association, 2005; 105(5):775–789.
  • Macronutrient distribution — Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. National Academies Press, 2005.
  • Protein requirements for athletes — Jäger R, Kerksick CM, et al. “International Society of Sports Nutrition position stand: protein and exercise.” Journal of the International Society of Sports Nutrition, 2017; 14:20.
  • Energy balance & weight management — Hall KD, Heymsfield SB, et al. “Energy balance and its components: implications for body weight regulation.” American Journal of Clinical Nutrition, 2012; 95(4):989–994.
  • Exercise fueling & recovery — Thomas DT, Erdman KA, Burke LM. “Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and Athletic Performance.” Journal of the Academy of Nutrition and Dietetics, 2016; 116(3):501–528.
  • Supplement evidence tiers — Maughan RJ, Burke LM, et al. “IOC consensus statement: dietary supplements and the high-performance athlete.” British Journal of Sports Medicine, 2018; 52(7):439–455.