Although you may not become nauseous, your appetite may be decreased for the duration of your treatment. Even if you are overweight, you should not lose weight during your treatment course unless it is done in a nutritious way. You may not feel like eating a normal meal, but you still need the same amount of calories and protein as you did prior to beginning treatment. This is even more important if you have lost a lot of weight before your diagnosis. Protein supplemented drinks are a healthy way to improve your calorie and protein intake when taken in addition to a meal (not as a substitute!). There are many brands available, even ones specifically designed for diabetics or patients who are lactose intolerant.