We heard about this and verified it, and apparently this is not well known, so thought we should flag it here on the blog as a warning. The carambola fruit, known more commonly as the "Star Fruit" (due to it's shape), is rich in antioxidants and vitamin C but it has been stated to be harmful to anyone with kidney problems and some deaths have been attributed to the consumption of it. This fruit also is said to contain a neurotoxin which invokes "star fruit intoxication", resulting in insomnia, confusion, vomiting, numbness of limbs, convulsions, and decreased muscle power. It is stated that those with healthy kidneys are able to filter out the neurotoxin, but why ingest it at all? It's a neurotoxin! It must do some damage to healthy kidneys? It may not kill you or make you sick if your kidneys are fine and you are tolerant to neurotoxins, but who knows what it DOES do to a healthy body on a small scale in the long term. Our recommendation is to avoid anything that may possibly be detrimental in any way and get your antioxidants and vitamin C another way, avoiding foods such as the star fruit.