The scientific literature is contested regarding whether meal frequency independently alters metabolic outcomes, with some studies showing benefits from intermittent fasting or higher meal frequencies and rigorous reviews and meta-analyses finding no metabolic advantage over isoenergetic controls.
The claim addresses whether altering meal frequency changes metabolic outcomes compared to eating the same calories in one sitting. This passes STEP 0 as a specific, empirical, and contestable claim. The retrieved papers show genuine division: some clinical trials and observational studies (e.g., [0], [4]) report metabolic differences or correlations with meal frequency, whereas systematic reviews, meta-analyses, and energy expenditure studies (e.g., [3], [5], [10]) find no significant metabolic advantage or difference in energy expenditure when calories are matched. Therefore, the verdict is CONTESTED.