TOP 10 foods to boost metabolism 1. Eggs Share on Pinterest Eggs are rich in protein and are a great option for boosting metabolism. Protein-rich foods are amongst the best options for boosting metabolism. Eggs are rich in protein, with each large, hard-boiled egg containing 6.29 grams (g), making them an ideal choice for people who want to speed up their metabolism. Protein is one of the most effective nutrients for increasing metabolic rate because the body needs to use more energy to digest it than it does for fats or carbohydrates. Scientists call this energy expenditure the thermic effect of food (TEF), or diet-induced thermogenesis (DIT). According to some research, people who consumed 29% of their total daily calories as protein had a higher metabolic rate than those who consumed 11% of total calories from protein. 2. Flaxseeds Flaxseeds are seeds that contain protein, vitamins, and other key nutrients. Some people c...