How to Compare Protein Bars

High-protein, low-carbohydrate diets have been widely touted since the 1990s as effective for weight loss. Protein takes longer to digest than carbohydrates and, therefore, helps the body to feel full for longer, whereas a carbohydrate-rich diet causes blood sugar to spike, resulting in feelings of hunger.



Many high-protein diets involve consuming protein bars as an efficient way to acquire the appropriate amount of protein to influence weight loss. However, all protein bars are not equal. Comparing the composition of protein bars reveals that some may actually hinder weight loss.

Pack in the Protein

• Not all protein bars are the same.

  Each bar varies in the number of protein grams it contains. The idea is to pack in the protein, and a bar with less than 10 grams of protein isn't adding any more protein than a cup of milk or yogurt. A high-protein bar is one that contains more protein than can be easily consumed in a regular meal.

Be Wary of High Carbs

• Carbohydrates can cause spikes in blood sugar levels.

  While a lot of bars have a high protein count, they may also be loaded with carbohydrates. If you are following a high-protein, low-carb diet then a bar with balanced protein and carb grams isn't a good choice. Read the packaging carefully to ensure the carbohydrate grams are fewer than the protein grams.

Spot the Sugar Sabotage

• A protein bar with a high sugar content can sabotage weight loss efforts.

  Many bars are packed with sugar or high fructose corn syrup. Excess sugar is turned into fat in the body. A bar with a high sugar content will sabotage the diet benefits of any protein bar.