Cow’s milk is a popular dietary staple known for its protein, calcium, phosphorus, and B vitamins. Yet, for many individuals, it isn’t suitable. People may need or choose to avoid it due to allergies, lactose intolerance, vegan lifestyles, or concerns about hormones and contaminants. Fortunately, the market now offers a range of plant-based milk alternatives—but not all are nutritionally equal. When choosing a milk substitute, it’s important to look beyond just taste and texture.Experts advise checking the label for added sugars, calcium and vitamin D fortification, protein content, and the percentage of the key ingredient (like almonds or oats). Here’s a closer look at five common substitutes for cow’s milk and how to pick the best ones for your needs.Soy MilkSoy milk, made from soybeans or soy protein isolate, is one of the most nutritionally comparable alternatives to cow’s milk. It typically contains 7–9 grams of protein per cup, which is similar to cow’s milk, and fewer calories and carbohydrates. Because it’s a complete protein source, it provides all essential amino acids, a rarity among plant-based options.However, some individuals avoid soy due to the presence of isoflavones—compounds that mimic estrogen—which have been debated for their hormonal effects. While current research does not confirm harm from moderate consumption, those with specific hormonal conditions may prefer to consult a healthcare provider.Soy milk can be a good option for cooking and drinking, but for people following a low-FODMAP diet, it’s best to choose versions made from soy protein isolate rather than whole soybeans, which can cause digestive discomfort.What to check: Look for fortified soy milk with calcium and vitamin D. If you’re concerned about GMOs, opt for organic versions.Almond MilkThis nut-based milk alternative has surged in popularity due to its light, slightly sweet flavor and low calorie content. Unsweetened almond milk typically contains just 30–35 calories per cup. However, it only provides about 1 gram of protein, making it less ideal for those needing higher protein intake.One downside is that most commercial almond milk contains only 2% almonds, meaning the drink is mostly water and may not offer the full nutritional benefits of whole almonds. Additionally, it contains phytic acid, which can inhibit the absorption of calcium, zinc, and iron.What to check: Look for almond milk with higher nut content (around 7–15%), and avoid sweetened versions to reduce unnecessary sugar intake.Coconut MilkCoconut milk is made from the white flesh of coconuts blended with water. It has a creamy consistency and a mild, sweet flavor. With about 45 calories per cup, it is low in carbohydrates and protein, and most of its calories come from saturated fat in the form of medium-chain triglycerides (MCTs).MCTs have been linked to potential benefits such as appetite regulation and better cholesterol profiles. Still, due to limited research and its high saturated fat content, coconut milk should be consumed in moderation as part of a balanced diet.What to check: Choose unsweetened versions and consider your overall fat intake, especially if you're managing cholesterol or heart health.Oat MilkMade from oats and water, oat milk has become a favorite for its naturally sweet flavor and creamy texture. It blends well in coffee, cereal, and smoothies. Nutritionally, it’s higher in carbohydrates (19–29 grams per cup) than other plant-based milks but also provides more fiber—particularly beta-glucan, which is known to help lower LDL cholesterol.It has 2.5–5 grams of protein and around 140–170 calories per cup. Because of its carbohydrate content, it may not suit low-carb diets but can be a satisfying option for those needing more energy or managing cholesterol levels.What to check: Look for fortified oat milk without added sugars. For homemade versions, it’s difficult to match the nutrient levels of commercial fortified options.Rice MilkRice milk, derived from milled rice and water, is the most hypoallergenic of the milk alternatives, making it suitable for those with allergies to dairy, soy, nuts, or gluten. It has a thin consistency and naturally sweet taste but is high in carbohydrates (27–38 grams per cup) and low in protein (1 gram per cup).Its high glycemic index means it’s quickly absorbed, which can cause blood sugar spikes—making it a less ideal choice for people with diabetes. Moreover, rice milk can contain higher levels of inorganic arsenic, so health experts recommend varying grain sources in your diet.What to check: Use rice milk occasionally, especially for children or those who consume large amounts of rice products. Choose brands that test and limit arsenic content.