Low Carb Diet Research 2025 Study. What we found in our study is that people. Ghrelin was significantly lower in participants assigned to the low carbohydrate diet compared with those assigned to the high carbohydrate diet (both analyses).

There are 3 macronutrients—carbohydrates (4 kcal/g), fat (9 kcal/g), and. Ghrelin was significantly lower in participants assigned to the low carbohydrate diet compared with those assigned to the high carbohydrate diet (both analyses).