The issue of a Pomeranian refusing to eat can be categorized into two parts.
1 - Literally not eating.
The dog is not eating at all, which causes a fast drop in body weight and quickly leads to lethargy, weakness, and other serious signs of malnutrition.
In these cases, this means that there is an urgent health issue. Since canines instinctively know that eating means survival, a fussy or picky dog will indeed eat to survive no matter what food is being offered.
Therefore, in these cases, this warrants an immediate veterinary visit.
2 - Not appearing to eat or having trouble taking in enough.
The dog is pretty picky, he may just nibble at his food or hold out long enough for an owner to give in and offer something else.
Understandably, when an owner says that their Pomeranian is not eating, what they actually mean is that they are concerned that the puppy or dog is not eating enough, or that getting the Pom to eat seems like a battle.
This also covers young puppies that just cannot seem to take in quite enough of what is needed to fuel a growing body.
Since the first issue - not taking in any food at all - is considered a very serious matter that requires immediate veterinary intervention, this section will cover the second type of issue: a Pom does not appear to have a hearty appetite.