Looking for "nam ma-ra" - bitter gourd juice, also known as Karela Juice. It's a health drink.

Understand it's not easy to make yourself, so I am trying the juice bars, supermarkets, fresh veggie markets, etc.

It's sold in cans in Japan and India. Tried Dada Kafe, Rimping, etc. - no luck so far.

Would not be that hard to make juice. Just peel it and run it thru a juicer.

if you don't own a juicer can probably just take some to a juice bar and have them extract for you.

The catch is its super bitter so makes sense to mix it with a sugar or something to cut the taste.

Even when cooked it's sooooo bitter so a little bit goes a long way.

supposed to have an anti diabetic property where it lower blood glucose.

I would try to make tea from it. Use fresh or dried slices of the melon, steep in boiling water for a couple of hours and chill in the fridge.