Then low-crb diets allow more carbs over time. Added Sugar Is Hiding in Your Food. Thank you for subscribing! Carbohydrates or carbs are a type of Mood-boosting superfood supplement that occur naturally countinf several countinincluding grains, nuts, seeds, fruits, vegetables, legumes, and milk. Carb counting for low-carb diets are countng the xounting main source of fuel. Your body breaks them down into glucose, which is an energy source for your cells, tissues, and muscles. Counting carbs can help you manage your blood sugar levels if you have diabetes or cancer. Certain low-carb diets may also require you to count carbs and restrict your intake, to help you lose weight.