Question: are red berries safe to eat?
Answer: Avoid white and yellow berries, as most of them are poisonous. Blue and black berries are usually safe to eat. The "berry rule" is that 10% of white and yellow berries are edible; 50% of red berries are edible; 90% of blue, black, or purple berries are edible, and 99% of aggregated berries are edible.