Lentils are what I would call a great source of filling fiber for a transition diet, and a good source of carbs and amino acids if you’re going to add some to your plate. They are heart-healthy, can improve digestive health by bulking up your eliminations, and can help you manage your blood sugar levels as a result. They also contain protein. One cup provides around as much as three whole eggs. However, try to limit your portions, especially if you have digestive issues. Some people are unable to digest them well, causing gas, bloating and discomfort. They also contain quite a lot of carbs, so beware of adding large portions of them to your diet if you’re planning to lower your carb intake.