Early eating windows changed inflammation markers in people with a previous heart attack
A small crossover trial found changes in immune cells and inflammation, but it did not establish whether time-restricted eating prevents further heart problems.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Restricting eating to the study's early daily window changed several blood markers related to inflammation compared with participants' usual diets. Some immune measures did not change significantly. These short-term findings concern laboratory measurements in people with a previous heart attack; they do not show a reduction in future cardiovascular events.
Only a small group was analyzed over brief diet periods. The abstract provides no effect sizes for the reported marker changes and no cardiovascular event results.
What researchers found
Low-grade systemic inflammation
After 2 weeks of time-restricted eating versus 2 weeks on the usual diet; the abstract gives no numerical effect size.
How the comparison worked
Each participant experienced both eating patterns, in a randomly assigned order, with a break between them. Researchers compared fasting blood samples collected before and after each period to assess metabolic and immune changes.
A mixed immune response
The reported changes included fewer neutrophils, an immune cell type, and lower systemic inflammation. Other monocyte measures and the cells' capacity to produce cytokines showed no significant changes, making the immune response mixed.
The original publication
Effect of 2 Weeks of Time-Restricted Eating on Innate Immunity and Systemic Inflammation in Patients With a History of Myocardial Infarction: A Randomized-Controlled Crossover Study.
Los J, Broeders W, Bahrar H et al.
J Am Heart Assoc · 2026
- PubMed ID
- 41859904
- Record checked
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