I want to agree with this study because it confirms my pre-existing biases, but am I really supposed to ignore this paragraph?
The study’s 21 participants, 18 to 40 years old, initially lost 10% to 15% of their body weight during a three-month diet that contained about 45% of total calories from carbohydrates, 30% from fat and 25% from protein.
… So this experiment basically took three groups of seven people, put them on a diet, and recorded what happened. I know that controlled laboratory studies on weight loss are difficult and expensive, but an n this small isn’t science, it’s a reality show.