Primary, secondary, and tertiary sources may all be appropriately used, if (1) they are used without engaging in original research or synthesis and (2) if in the event of conflicts between sources they are treated with the appropriate deference to the better source.
There is some evidence that a low-carbohydrate diet may help people lose weight more quickly than a low-fat diet (31,32)âand may help them maintain that weight loss.
Low-carb diets. Low-carbohydrate (low-carb) diets usually involve cutting out most starchy foods. These diets tend to be high in fat, and eating a high-fat diet (especially saturated fat from foods such as meat, cheese and butter) could increase your risk of heart disease.ow-carbohydrate (low-carb) diets usually involve cutting out most starchy foods. These diets tend to be high in fat, and eating a high-fat diet (especially saturated fat from foods such as meat, cheese and butter) could increase your risk of heart disease.