The most taboo foods for Scottish Shepherds:

1. Onions. Onions can cause symptoms of acute anemia in Scottish shepherd dogs, accompanied by vomiting, eye congestion, etc., so they cannot be given to them.

2. Chicken bones. The texture of chicken bones is very hard. It is difficult for a Scottish Shepherd to bite into pieces and it is extremely difficult to digest, so it cannot be eaten.

3. Chocolate. The caffeine and theobromine in chocolate can cause poisoning in dogs.

4. Coffee. Coffee contains caffeine, which can cause caffeine poisoning in dogs, causing them to become extremely excited and even cause convulsions and death.

5. Grapes and grape products. Grapes and grape products contain large amounts of sugar and other ingredients that can be toxic to dogs and can cause kidney failure in dogs.

6. Alcohol. Food containing alcohol can cause alcohol poisoning in dogs.

7. Food for human consumption. Dogs cannot eat seasonings. Eating too much will put a burden on the Scottish Shepherd's gastrointestinal tract and kidneys, and will also make the hair lose its luster.

8. Milk. Many Scottish sheepdogs are lactose intolerant. If they are given milk, they will suffer from diarrhea and severe dehydration and death.

9. Foods with high salt content. Foods with high salt content can cause kidney failure and picky eating in Scotch Collies.