Kiwis are a good source of vitamin C, antioxidants, and fibre. Antioxidants — including vitamin C, choline, lutein, and zeaxanthin — help remove free radicals from the body. It helps in the formation of collagen that is responsible for skin and hair health. Vitamin C helps in boosting immunity. Kiwi will continue to ripen after picking. If your Kiwi is under-ripe, leave it on the kitchen counter for a few days. Ripe ones can be kept in the refrigerator for several weeks.