One reason for drinking hemp milk is it provides a good nutritional substitute for people who cannot digest cow's milk. Unlike other cow's milk alternatives such as soy or almond milk, hemp milk is safe for people with nut allergies.
Cow's milk is one of the most prominent self-reported food allergens in the world, according to the Center for Nutrition Studies. Many people are lactose intolerant, meaning they are unable to digest lactose, a type of sugar found in dairy products. For these people, hemp milk is a good alternative to cow's milk because it may be substituted anywhere cow's milk is used. Hemp milk may also be used as a dairy alternative for people who avoid animal products for ethical reasons. Many brands of hemp milk are fortified with vitamins and minerals that are naturally found in cow's milk, meaning switching to hemp milk should not cause any nutritional deficiencies.
Hemp milk is a good source of protein and contains a combination of 10 essential amino acids. It is also slightly higher in healthy omega-6 and omega-3 fatty acids than soy or almond milk. These types of fatty acids may help to regulate cholesterol and blood pressure if consumed regularly. Like most milk alternatives, a glass of unsweetened hemp milk is lower in calories than a glass of low-fat milk.