Mixed
Long-term weight loss maintenance is primarily driven by behavioral adherence and diet quality rather than specific macronutrient ratios, as physiological adaptations (increased hunger, decreased energy expenditure) create a strong biological resistance to weight loss that is best overcome by sustainable, high-quality dietary patterns.
Stop obsessing over whether your diet is low-carb or low-fat. Focus on eating whole, unprocessed foods (vegetables, fruits, whole grains) and maintaining a caloric deficit. Expect your body to fight back with increased hunger; this is normal. Manage it by prioritizing food quality and behavioral consistency over strict macronutrient counting.
The key to successful weight loss lies in the prudent combination of all these approaches in the context of a healthy and balanced diet without severe restrictions or nutritional exaggerations... The physiological response to weight loss is resistance to further weight loss through a compensational biological adaptation expressed as a shift in hormone balance related to appetite regulation, a decline of resting energy expenditure... The ideal weight loss maintenance diet should be continuous, easy to comply with, and of low energy density.
Why this rating
Based on a review of multiple meta-analyses and randomized controlled trials (e.g., DIETFITS, DIRECT), though the paper itself is a review, not a primary RCT.
Source
Defining the Optimal Dietary Approach for Safe, Effective and Sustainable Weight Loss in Overweight and Obese Adults
Chrysi Koliaki et al. · Healthcare · 2018
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →