To be honest i talk to him about food, he ate fish, pork, chicken, lots of veges and fruits, he claim he ate at least 4 servings of fruits and 4 serving vege per day. One whole kiwi is one serving for example. He also have 2 glass of milk, drinks lots of fruit juice (various types), he also have bottle of essense of chicken daily, and a glass of milo daily. I dont think protein is a problem.
He also take Shen yu, I dont know the name of the fish in english (not raw fish), chinese typically take it when recovering from injuries and yes it is known to speed up recovery by more than 25% most of my relatives and friends swear by it. To be honest all other nutricient supplement effectiveness depends on person to person, but Shen yu effectiveness is like work for everyone except if u allegic to seafood. Ask any chinese what to eat when injured they would tell u 3 things chicken essense, shen yu and yunan baiyao, although some would say tian qi. I note sure about chiense medication but I heard from ppl yunan baiyao can work wonder but I dont trust china products so I never recommend to my patients. But some of my patient told me they use the product with good effect. There are 2 kind one for internal and for external, I advise against the external one as it may impaired our wound treatment process.
Zinc maybe a problem, since he is chinese and all chinese seem to avoid beans, nuts, and all seafood except fishes , when having open wounds.
The reason is these food contain either poison (not the poison that can kill) or is more likely to be infected or cause infection. As for why we are not sure. Some even go to extend to ban managoes.
This is why I recommend him get zinc pill, but then again even blood test (done b4 he took the pill) show no sign of zinc defincientcy but never the less I ask him to take. But then seem like zinc does nothing much, he only claim he sneeze less.