
Hiya,
I don't know anything about Mals eating habits but am assuming that they're just like any other breed.
Do you feed him 'human' food often? If so, it may be that he's getting a bit spoilt, and thinking his burns is not good enough for him!
Personally, I'd get him checked over by the vet. If there's nothing physically wrong, it may be a good idea to stop any treats and give his normal food at the usual times. Leave it down for about 15 minutes, and if he doesn't touch it, take the food away, and offer his next meal at the normal time. Eventually he'll realise that he's not going to get anything else, and he has to eat his own food.
A normal, healthy dog will never starve, and will eat when they're hungry enough.
I'm sure there will be others along shortly who can help out a bit more.
Best of luck,
Lisa