Author note: One of my favorite leaves to pick on my farm are persimmon leaves. Persimmon leaves contain proanthocyanidins, which are a type of polyphenols, tannins, flavonoids, terpenoids, nitric oxide, choline, astragalin, and amino acids. The leaves also have more vitamin C5 than the fruit and are a good source of carotenoids, magnesium, manganese, titanium, calcium, and phosphorus. Studies have shown that drinking persimmon leaf tea improves your metabolism6, and flavonoids help lower blood pressure.