How much baking soda is toxic for cats?
Small amounts of baking soda may not cause any problems at all for some cats while it can be quite sickening to others. The amount which is considered toxic to your cat is greater than a third of a tablespoon (or about 1 teaspoon).
What happens if a cat licks baking soda?
When a cat ingests a toxic amount of baking soda, symptoms show up within three hours of ingestion and usually include vomiting as the first sign. If left untreated, a baking soda toxic episode can lead to diarrhea, lethargy, seizures, and shortness of breath, among other symptoms.