n1 longevity
Where we draw the line
Where we draw the line
Food is powerful. It is not a substitute for medicine.
Plenty of people need prescriptions, and plenty of conditions require a physician. Nothing here suggests that a better diet can replace a medication, a procedure or a doctor's judgment — and you should never change or stop a prescription because of something an app told you.
Read our full position
What the research does support is that nutrition can play a meaningful role in prevention, and in some conditions in stabilization, alongside medical care.[3][4] That is the lane we work in: preventative nutrition for longevity, taught well, personalized to you.
Everything we show you — calories, macronutrients, micronutrients, scores and trends — is an estimate produced from your logs and public nutrition databases. Estimates are useful for spotting direction and gaps. They are not laboratory measurements, and they are not a diagnosis.
Sources
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- [1] Lane MM, et al. Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses. BMJ. 2024;384:e077310.
- [2] Monteiro CA, et al. Ultra-processed foods: what they are and how to identify them. Public Health Nutrition. 2019;22(5):936-941.
- [3] Estruch R, et al. Primary Prevention of Cardiovascular Disease with a Mediterranean Diet Supplemented with Extra-Virgin Olive Oil or Nuts (PREDIMED). N Engl J Med. 2018;378:e34.
- [4] Lichtenstein AH, et al. 2021 Dietary Guidance to Improve Cardiovascular Health: A Scientific Statement From the American Heart Association. Circulation. 2021;144:e472-e487.
- [5] Hall KD, et al. Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial. Cell Metabolism. 2019;30(1):67-77.