Study Summary
When it comes to health, not just what we eat but also when we eat can play an important role. This article explores recent evidence on how the timing and frequency of meals relate to heart and metabolic health.
What They Did
This review, published in Circulation in 2017 by St-Onge and colleagues, examined findings from observational and clinical intervention studies involving diverse populations including adults from Sweden, the United States, and Japan, as well as female participants from the NHANES survey.
What They Found
The review found that late-night eating—such as having dinner close to bedtime or consuming a large share of daily calories at night—is linked with higher risks of obesity and metabolic syndrome. Additionally, women showed increased markers of inflammation, like C-reactive protein, when consuming more calories in the evening. Skipping breakfast combined with eating late at night further increased the risk of metabolic syndrome. These findings suggest potentially negative effects on cardiometabolic health when large meals or significant energy intake occur near bedtime.
Why It Matters
Understanding the relationship between meal timing and cardiometabolic health is important because it highlights a modifiable behaviour that could influence obesity and metabolic disease risk. While the evidence is primarily observational and does not prove causation, it draws attention to the possible benefits of avoiding heavy meals late in the evening and maintaining regular meal patterns to support heart and metabolic health.
My Clinical Insight
In clinical practice, patients often focus on what they eat, but timing is frequently overlooked. This review reminds us to consider meal schedules alongside dietary content. Encouraging patients to avoid late-night eating and to maintain consistent meal times, including breakfast, may complement other lifestyle advice aimed at reducing cardiometabolic risk. Individual circumstances vary, so personalised guidance remains key.
Until sleep feels natural again, Dr Noaman
