Hi
If your friend is leading a sedentary lifestyle and eating only food which is made with refined grain with combination of cheese and red meat,it can make him overweight or obese
Next Steps
Ask him to change his food habits .Replace refined grains with whole grains with a combination of legumes and veggies.
Health Tips
If he prefers meat as one time meal,ask him to have with a combination of vegetables so that his meal will be balanced with a combination of protein/fat/fibre which will be a better meal