"Every bite needs to count," says Macaire. "We'll focus on high calories and high protein to preserve lean body mass and maintain healthy immune cells. Soft proteins are recommended: beans, lentils, tofu, nut butters, eggs, yogurt, and smoothies with protein powder. Eating lean meat, chicken, or fish that's soft, ground, or blenderized works well. Treatment side effects may preclude eating multiple textures, but you can still 'eat' favorite tastes pureed into one cohesive mixture."