I made some coconut cream from Goya brand coconut milk. Eight ounces became six with gentle heating, thickening it to what I thought to be the consistency of heavy cream. It took about 3 ounces of the cream to amply accompany the half cup of blueberries. If you are counting your food, just use the Goya stats and multiply by 1.3 instead of making a new category.
The cream is richer than the cow kind, about 125 calories per 2 oz or four tablespoons. Regular cream is about 80 calories.