It is false that a decrease in "food miles" will most likely increase the environmental impact of any given food.
Those that are lactose intolerant can have milk without the lactose in it but those with milk allergies can't have milk at all unless they take some kind of special medication for it.
If you are asking what one serving size in cups of brown rice is the answer is 1/2 cup.
If there are 40 servings per container of rice and 20 cups you would simply divide
