A 2015 paper published the potential benefits of using Amla or Indian Gooseberry to lower blood sugar levels.
Indian gooseberry is taken by mouth for high cholesterol, "hardening of the arteries"(atherosclerosis) , diabetes, pain and swelling of the pancreas (pancreatitis), cancer, , eye problems, joint pain, diarrhea, bloody diarrhea (dysentery),, obesity, "organ restoration", and for a skin disorder that causes unpigmented skin (vitiligo).
Amla is available at ethnic stores in many different forms. You can buy amla powder or in capsula. Amla is a fruit that has the highest content of Vitamin C. It can be found in ethnic stores throughout NYC or on line
I have used both pickled gooseberries and powdered amla with positive results. You only need a small amount, about equal to one gooseberry daily.