Why the chowder base matters more than the scallop
Your cat's small size makes even trace amounts of onion or garlic in the chowder a concern. At 4 kg, her system processes toxins differently than a larger animal would. The scallop itself is marine protein, which cats tolerate well, but the creamy broth likely contains allium-family ingredients that damage feline red blood cells over time.
Watch for subtle signs like reduced playfulness or pale gums alongside the expected vomiting or diarrhea. These could indicate early anemia from garlic exposure. If she licked only a teaspoon's worth of sauce, symptoms may be mild, but any repeated tongue-cleaning of the bowl would warrant a vet visit to check her red cell count.
The 12-hour window for dairy reactions
Heavy cream or butter in the chowder could trigger temporary lactose intolerance symptoms separate from garlic toxicity. Unlike dogs, cats lack sufficient lactase enzymes to break down dairy efficiently. Your cat's weight suggests even a tablespoon of cream might cause stomach cramps or loose stools within a few hours.
These dairy effects usually pass within a day if no other toxins are involved. Keep fresh water available to prevent dehydration from diarrhea. The combination of dairy and potential garlic makes this a two-system watch—digestive upset now, possible blood changes later.
How to check for hidden ingredients
Examine the leftover chowder for visible onion flecks or garlic powder residue around the bowl's edges. Restaurant or store-bought versions almost always contain these, while homemade might use safer alternatives like leeks or chives (still risky but less concentrated). The orange tint of some chowders suggests paprika or saffron, which are pet-safe in culinary amounts.
If the sauce has separated, the oil layer may contain infused garlic—more hazardous than raw pieces. Wipe your cat's whiskers with a damp cloth to remove any oily residue she might groom later. For future scraps, seafood broth without alliums is safer, but plain boiled fish beats creamy soups every time.
When to transition from watching to calling
At this weight, three clear episodes of vomiting or liquid diarrhea mean she's losing too much fluid. Small cats dehydrate rapidly—check for skin tenting at the scruff or tacky gums. Garlic's hemolytic effects sometimes take 2-5 days to appear, so note any unusual tiredness or dark urine even after the initial scare passes.
Her recent meal schedule matters too. If she ate her regular food shortly before the lick, the dairy may mix with stomach contents and cause less irritation. An empty stomach makes irritants hit harder. Mark the time of exposure; delayed reactions beyond 8 hours often point to toxins rather than simple dairy intolerance.
The full verdict, portion guidance and serving notes are collected on the Scallops food facts page.