Monkey nuts heals 4 hitpoints. They can be purchased at Solihib's food stall on Ape Atoll after starting the Monkey Madness quest. Players must be in the form of a monkey (by holding any monkey greegree) before talking to the stall owner or they will be thrown in jail just like in the quest.
5 Monkey nuts are also used in farming, together with a Monkey bar and a ground Suqah tooth, as the payment for protecting a spirit tree.
There is also a Monkey nut bush under the Ape Atoll agility course, but this never seems to have any nuts on it, because they only grow Tchiki monkey nuts during Recipe for Disaster.
Trivia
- Monkey nuts is a colloquial term for peanuts.