It really depends upon the type of butter he is eating, meaning if he has access to organic grass-fed butter than he could do well with that. I know a lot of people are talking about the lack of protein, but what I also find problematic is the lack of quality saturated fat, and monounsaturated as well.
These can be well-represented in coconut oil, types of animal fats, like beef, veal, lamb, and so on, even pork. What also is quite worrying is the lack of vegetables he is consuming as well. This should not be just occasional, but daily. Get some leafy greens in ya, like celery, lettuce, and even more important some very quality cooked ones like broccoli, spinach, and whatnot. These can really help elevate you. Combine them with some extra-virgin olive oil. I also like to mix the cottage cheese with that, it is very tasty. That in itself is a good amount of quality fats, but only for one meal.
The vitamin C is sufficient in the mangos and muskmelon, assuming it is summer where he is. However, I do like to squeeze some lime or lemon on my leafy raw veggies during lunch. It is quite nice.
And, yes, for the love of God, please cut down on the fricking carbs bro. Pick just one out of wheat, rice and potato for the day. I would more often eat rice than potato purely because it is lighter on my stomach but whatever.
There is a long way to go, but you can make it. <3 <3 <3
