Hello, this is a very interesting question, and very common to those of us with conditions that cause problems with fatigue and poor appetite. I was on antibiotic therapy for a long time that caused weight loss, lack of appetite and constant fatigue. I have a friend who had throat cancer and eats an all-liquid diet.

She was invaluable in teaching me to plan/sneak nutrition and extra calories into everything I eat, to prepare several meal portions at a time and refrigerate or freeze, and that most expensive supplements are not necessary.

Some tips:
- Glucerna, Orgain or similar high-nutrition/low sugar drinks. Find one or 2 you like and keep them handy for when you can't possibly get up the energy to fix a meal (save the bottles) Low sodium V8 juice
- Smoothies - made with loads of fruits and vegetables (frozen works too), yogurt if you tolerate dairy, tofu if you do not, and a good protein powder - I make 2 liters and put in 8 oz bottles in frig/freezer. One is a snack or small meal.
- Homemade soup - no recipe needed - a protein (meat or beans) vegetables (your choice) water and seasonings - simmer until done, package single servings and freeze.
- Durable fruit like apples & clementines, veggies like carrots - easy to peel & eat, store well.
- Precooked chicken - frozen or canned, and frozen vegetable mixes - stir together, microwave or stir fry, season to taste.
- Eggs in any form and cheeses sticks or 1oz prepackaged cheeses, dry roasted nuts - great protein, keep well, minimum prep.
- Frozen meals - go online, read the labels on the healthy choices, find a few and try. Don't ignore the "smaller" labels like Amy's and some of the ethnic food choices - just watch the fat & sodium.
- Meals on Wheels if it is available by you and you qualify.

Many, many low cook/no cook options. Try to plan prep for your least-fatigued time of day, clean up right away, and plan a rest afterwards.
And if you can, order and have your food delivered to save your energy. Or order for curbside pickup.

Does this help - can you see one or two ideas here to try?
Sue