What kind of research was this?

This human laboratory study looked at the way two short$-$term diets $$ one low in fat, one low in carbohydrates $$

affected a person's metabolism and any weight loss.

Your body gets energy from two main sources: by burning fat and carbohydrate. Both are regulated by the

hormone insulin. Popular weight$-$loss diets often advise cutting down either fat or carbohydrates, but there is

debate about which works best.

This study wasn't focused on weight loss, but was geared up to investigate how diet influences how the body

burns fat and carbohydrate. The researchers highlighted past randomised control trials showing greater shortterm weight loss in obese patients on low$-$carb diets.

But they say there are problems with these studies, meaning we don't know if they help you lose weight by

changing your metabolism for the better $$ lowering insulin levels and causing more fat burning and energy

expended as a whole $$ or simply make you eat less overall.

Low$-$carb diets can be higher in protein and fat, which are filling, making you eat less. This wasn't the case in

this study.