Are the red fruits of holly poisonous?
Under normal circumstances, the red berries of holly are somewhat toxic. The specific analysis is as follows:

The red berries of holly contain certain toxic components such as saponins and alkaloids. Once ingested, these substances can irritate the gastrointestinal mucosa, causing discomfort such as nausea, vomiting, abdominal pain, and diarrhea. If a large amount is accidentally consumed, the toxins may affect the nervous system, leading to symptoms like dizziness, fatigue, and confusion. Children are particularly sensitive to these toxic compounds, and even small ingestions can result in severe reactions. Therefore, holly is commonly used only as an ornamental plant and should never be eaten.
When growing holly at home or in the garden, it is important to clearly inform family members, especially children, about its toxicity to prevent accidental ingestion. Wash hands promptly after pruning branches or picking the red berries, and if skin irritation or itching occurs after contact with the plant's sap, rinse thoroughly with plenty of water. If accidental ingestion occurs, induce vomiting immediately and seek medical attention, bringing a sample of the berries for identification. Decorative holly berries should not be placed within easy reach of children, and fallen berries should be cleaned up promptly to avoid potential danger to pets.