A new study in Health Psychology reports that adults who frequently ate the same meals lost more weight during a 12-week program than participants who consumed a more varied diet.

This finding challenges a cornerstone of popular nutrition advice that universally promotes dietary variety, suggesting that for the specific goal of weight loss, establishing a routine may reduce decision-making and improve outcomes. The research adds to a growing conversation in nutrition science that is re-examining several widely accepted wellness practices, from daily multivitamin use to exercise intensity, urging a more evidence-based approach to personal health.

What We Know So Far

  • A new study published in Health Psychology found an association between eating repetitive meals and greater weight loss, according to foxnews.com.
  • Participants with less dietary variety lost an average of 5.9% of their body weight over 12 weeks, compared to 4.3% for those with more varied diets, the study reported.
  • The observational study analyzed food logs from 112 adults with overweight or obesity who tracked their meals daily.
  • Separately, multiple large-scale studies, including the COSMOS trial, have found that daily multivitamins do not significantly reduce the risk of major diseases in otherwise healthy adults, according to altitudesmagazine.com.
  • New guidelines also warn against the routine use of daily aspirin for disease prevention in certain populations, as reported by altitudesmagazine.com.
  • Long-term research from the Harvard Study of Adult Development suggests habits like maintaining strong social connections and lifelong learning are strongly linked to health and happiness, according to aol.com.

Why Eating the Same Meals Might Aid Weight Loss

A study published in Health Psychology analyzed the eating habits of 112 adults with overweight or obesity during a 12-week weight-loss program, challenging the conventional wisdom that a constantly varied diet is always best for weight management. Participants tracked meals via an app and weighed themselves daily, according to foxnews.com.