Does lettuce give dogs diarrhea? Too much lettuce, as is the case with almost any human food, can make your dog sick. Side effects of ingesting too much lettuce include diarrhea and vomiting, so it’s important that you don’t go overboard.
Why can’t dogs eat lettuce? Large pieces of lettuce (think tiny dogs or those larger dogs aka food gulpers) can be a choking hazard or a digestive tract blockage – another reason for the bite-sized pieces. Kale and spinach both contain oxalic acid and isothiocyanates.
Can dogs have cucumbers? Are Cucumbers Safe for Dogs? Cucumbers are perfectly safe for dogs to eat, and offer a low-calorie, crunchy snack that many dogs love. Cucumbers only contain about 8 calories per one-half cup of slices, compared to the 40 calories in a single medium biscuit, and are very low in sodium and fat.
Is iceberg lettuce OK for dogs? But can dogs eat lettuce? In general, yes. Lettuce of the romaine, arugula, and iceberg variety do not contain anything that can really harm your dog.