A can of tuna, 4 egg whites and 10 shrimp is expensive? Not where I live. That’s less than $5.
Also, I wasn’t talking about adding it to some other meal. I could easily eat 20 peeled shrimp for a snack. That’s a quick snack with 40g protein and 200 calories. Add that to a large bowl of spinach with some couscous and chickpeas and you have a super healthy high protein lunch salad for about 500 calories. Someone who weighs 200 KG is consuming a TON of food. This would cut their calories, provide a good serving of carbs and protein, and be fairly filling to prevent unhealthy snacking. All for less than $10.