I'm afraid of crunch berries.
The cereal? Why are you afraid of Crunch Berries?
I heard that if you eat them you will have an allergic reaction.
If you're not allergic to an ingredient in the cereal, you won't have a reaction to them. They are perfectly safe to eat for most people.
No! Crunch berries are really scary and I fear for my life.
If you are that concerned about the cereal, you should go to a doctor and have them check your for allergies. That way you will know for sure that you are not allergic to anything in the cereal. If after that you still can't eat the cereal, you should consider seeing a psychiatrist since it's not normal to be so afraid of eating cereal.