Simplify the following text for a Grade 4 native English-speaking person.
Original: The fruit is a red , blue or black berry containing several seeds ; in most species the berries are mildly poisonous , but a few ( notably Lonicera caerulea ) have edible berries .
Simplified: The fruit is a red , blue or black berry that has several seeds . The berries of most honeysuckles are mildly poisonous , but a few have berries that are good to eat .