Does MyFitnessPal train on your data?
MyFitnessPal names machine learning and artificial intelligence once, as tools it uses to improve the Services. Whether your food and exercise logs train a model, it never says.
This clause is real, but it doesn't resolve the training question - see the finding below.
"We use your personal information to improve and enhance our Services, including through the use of various technologies (e.g., business intelligence tools, machine learning systems, and artificial intelligence)"
- 7 Sept 2026
- 5 Oct 2026
- All accounts (free and Premium)
- global
- Fetched from the company
- 7064337D…9D75
Why this is still UNCLEAR: The word "train" does not appear in this policy at all. "Machine learning" and "artificial intelligence" appear once each, in the sentence quoted, and they are named as technologies the company uses to improve and personalise the Services — not as things your data is used to build. That difference is the whole question, and the document does not close it: running an ML system over your food logs is not the same as putting those logs in a training set, and this policy never says which it means. MyFitnessPal replied on 10 September 2026, ten days after being asked: it "has not and is not using your personal information to train any proprietary models at this time". That would move this listing if it were published. It is not: the reply points back to the How We Use Personal Information section, which is the sentence quoted here, and the policy re-read live the same day still says only that machine learning and artificial intelligence are among the technologies used to improve the Services. Two hedges are recorded rather than held against anyone. "Proprietary models" leaves unaddressed the third-party model providers a product like this may send data to, and "at this time" describes the present without undertaking anything about the future. The reply is quoted in full above; the grade waits for the sentence to appear somewhere a customer can cite.
What MyFitnessPal said when we showed them this
Clarified“Thank you for your question. MyFitnessPal uses tools like artificial intelligence and machine learning systems to enhance and personalize our Service. However, we have not and are not using your personal information to train any proprietary models at this time. For more information, please see the How We Use Personal Information section in our Privacy Policy.”
What each plan can refuse
The same questions, asked of every plan we could identify. Every cell comes from a quoted clause or a documented search - see the evidence above.
- Not established
- Not stated
- —
- —
- Not established
How to opt out of MyFitnessPal AI training
Plan by plan, from what MyFitnessPal's own policy says about refusing. Where it publishes the steps, they're listed here with the limits they carry. Where there's nothing to switch off, or nothing graded, this says so instead of inventing a menu path.
All accounts (free and Premium)
Not graded, so no route is pointed at. The word "train" does not appear in this policy at all. "Machine learning" and "artificial intelligence" appear once each, in the sentence quoted, and they are named as technologies the company uses to improve and personalise the Services — not as things your data is used to build. That difference is the whole question, and the document does not close it: running an ML system over your food logs is not the same as putting those logs in a training set, and this policy never says which it means. MyFitnessPal replied on 10 September 2026, ten days after being asked: it "has not and is not using your personal information to train any proprietary models at this time". That would move this listing if it were published. It is not: the reply points back to the How We Use Personal Information section, which is the sentence quoted here, and the policy re-read live the same day still says only that machine learning and artificial intelligence are among the technologies used to improve the Services. Two hedges are recorded rather than held against anyone. "Proprietary models" leaves unaddressed the third-party model providers a product like this may send data to, and "at this time" describes the present without undertaking anything about the future. The reply is quoted in full above; the grade waits for the sentence to appear somewhere a customer can cite.
What this policy has done since we started watching
No change detected. We've held a copy of MyFitnessPal's policy since 29 Aug 2026 and re-read it since, across 2 captures. The text hasn't moved in a way that touches this verdict. That's a fact about the document, and it's only knowable by having kept the earlier copies.
Everything we read
Vendor response
Their reply is quoted in full at the top of this page.
We wrote back on 11 Sept 2026 with a question that's still open. It's listed on the register.