My dog ​​buries food instead of eating.

My 14-month-old dog refuses to eat because his instinct to hide (“bury”) food seems much stronger than his hunger—even after days without eating.

Sometimes he goes several days without eating at all, hiding every meal in his fabric bed instead of consuming it.

According to my vet, his body weight should be at least 3.5 kg (about 7.7 lb), but today he weighed 2.4 kg (about 5.3 lb).

I’d really like to avoid having to use a nasogastric feeding tube just to prevent him from starving.

Do you have any suggestions on how to stop him from burying his food and encourage him to eat it instead?