First study: >"During the test phase, high, moderate, and low carbohydrate diets varied in carbohydrate (60%, 40%, and 20% of total energy, respectively[...]We

First study: >"During the test phase, high, moderate, and low carbohydrate diets varied in carbohydrate (60%, 40%, and 20% of total energy, respectively[...]We randomly assigned participants who achieved the target weight loss to high, moderate, or low carbohydrate test diets for a 20 week test phase.)" Second study: >"14 days of a low-carbohydrate diet (21 g of carbohydrates per day)" So the first study went for 5 months but didn't include an actual low-carb diet: 100 g -> ~400 cal -> ~20% of 2k cal/day The second study only went for 2 weeks but did include a low carb diet: 21g -> ~84 cal -> ~4% of 2k cal/day Now someone just needs to combine these methods into one valid study.