A new study suggests that eating the same “go-to” meals and keeping daily calories consistent may help people lose more weight. Participants who followed a routine eating pattern lost more weight during a 12-week behavioral weight loss program than those who ate a more varied diet. The findings were published in the journal Health Psychology.
Researchers analyzed detailed, real-time food logs from 112 adults with overweight or obesity enrolled in a structured weight loss program. Participants logged everything they ate in a mobile app and weighed themselves daily on a wireless scale. The team focused on the first 12 weeks, a period when participants tend to be most engaged and accurate in tracking.
The study measured routine in two ways:
– Caloric stability: how much daily calorie intake fluctuated from day to day and between weekdays and weekends.
– Dietary repetition: how often the same meals and snacks were recorded over time.
Those who repeated the same foods lost an average of 5.9% of body weight, compared with a 4.3% loss among people with more varied diets. Greater consistency in calorie intake was also linked to better weight loss: for every 100-calorie increase in daily fluctuation, weight loss decreased by about 0.6% during the study period.
Experts note the potential benefits and limits. Kristin Kirkpatrick, a registered dietitian at The Cleveland Clinic (not involved in the study), said consistency and predictability can help some people eat better and lose weight, but emphasized limitations such as self-reported data, the structured program environment, and the observational design. David Cutler, MD, a family medicine physician (also not involved in the study), highlighted that many successful weight controllers limit food choices and that doing so with healthier options and awareness of calories can aid weight loss.
The study shows correlation, not causation; factors like motivation or self-discipline could influence results. Still, the findings imply that simplifying food choices—rotating a set of nutrient-dense “go-to” meals and keeping calorie intake steady—may help build sustainable habits in challenging food environments.
According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), over 70% of U.S. adults have overweight or obesity. Because weight-loss strategies don’t work the same for everyone, discuss the best approach with your doctor. A personalized plan developed with a registered dietitian that considers preferences, labs, medications, genetics, and lifestyle is often the most effective.
