Bring water to boil and dissolve sugar in it, stirring until completely clear. Meanwhile, wash the mulberries after removing the stems and pour into primary fermentation vessel. Add raisins, chopped or minced.
It will make approximately one gallon of mulberry wine. Equipment and ingredients will be available online or from wine-making retailers. 4 lbs of ripe but not overripe mulberries.
Mulberries are excellent for producing a deliciously fruity red wine. They ferment well because they are full of natural wild yeast, so when ripe, they almost ferment themselves.
Dry white wines are even friendlier to low-carb diets than the most popular red varietals, with many varietals coming in around just 3 grams of carbs per glass. Just stay away from the sweet stuff. Sweet wines are no friend to a low-carb diet or weight loss in general.