Unsweetened soy milk achieves a FoodScore of 51/100, placing it in the Decent category. This score reflects a balance between its beneficial nutrient profile and its classification as a processed food. A significant positive contributor to its score is its fortification with key micronutrients. For instance, 100g of unsweetened soy milk provides 43% of the Daily Value for Vitamin B12 and 15% for Vitamin D, which are often lacking in plant-based diets. These additions, along with riboflavin, earned it a +6 bonus. Furthermore, it contains no added sugar and no saturated fat, which are favorable attributes according to dietary guidelines. However, its NOVA class 3 designation, indicating it is a processed food, resulted in a -5 penalty. While processing is not inherently negative, the FoodScore system generally favors whole or minimally processed foods. To achieve a higher score, the product would ideally be less processed or offer a higher concentration of naturally occurring beneficial nutrients without fortification, though its current formulation makes it a valuable option for many.
Health benefits
What the nutrients in soy milk (unsweetened) actually do for you, grounded in established dietary science.
Supports Bone Health
Unsweetened soy milk is often fortified to support bone health, making it a valuable dairy alternative. A 100g serving provides 123mg of calcium, which is 9% of the Daily Value, and 15% of the Daily Value for Vitamin D. Calcium is essential for building and maintaining strong bones, while Vitamin D helps the body absorb calcium effectively. Dietary guidelines emphasize adequate intake of both nutrients to reduce the risk of osteoporosis. While not as high in calcium as dairy milk, its fortification helps bridge this gap for individuals avoiding dairy.
Contributes to Muscle Maintenance
Unsweetened soy milk can contribute to muscle maintenance and repair due to its protein content. Each 100g serving contains 2.9g of protein, which is a significant amount for a beverage. Soy protein is considered a complete protein, meaning it contains all nine essential amino acids necessary for muscle synthesis. Research supports the role of plant-based proteins in supporting muscle health, especially when consumed regularly as part of a balanced diet. This makes it a suitable option for those looking to increase their protein intake through plant sources.
Aids in Energy Metabolism
Unsweetened soy milk is a good source of Vitamin B12, which is crucial for energy metabolism and nerve function. A 100g serving delivers an impressive 43% of the Daily Value for Vitamin B12. This vitamin plays a key role in converting food into energy and in the formation of red blood cells. For individuals following vegetarian or vegan diets, fortified foods like soy milk are particularly important as B12 is primarily found in animal products. Ensuring adequate B12 intake helps prevent fatigue and supports overall cellular health.
Supports Heart Health
Unsweetened soy milk can support heart health due to its favorable fat profile. It contains 0g of saturated fat and 0g of trans fat per 100g, which aligns with dietary recommendations to limit these types of fats for cardiovascular well-being. Diets low in saturated and trans fats are associated with a reduced risk of heart disease. The absence of these fats, combined with its plant-based origin, makes it a heart-friendly beverage choice. Incorporating such foods can be part of a broader strategy to maintain healthy cholesterol levels.
Unsweetened soy milk scores a Decent 51/100, primarily due to its fortification with essential vitamins and minerals, offsetting its processed nature.
How to eat it
Unsweetened soy milk is a versatile plant-based beverage commonly used as a dairy milk alternative in the US diet. It's often consumed in cereals, coffee, smoothies, or used in cooking and baking. Its neutral flavor makes it adaptable to both sweet and savory applications. A typical serving size is 1 cup (240ml), which can be easily incorporated into daily meals.
Store opened soy milk in the refrigerator and consume within 7-10 days for optimal freshness and safety.
Use unsweetened soy milk as a base for smoothies with fruits and vegetables to add protein and creaminess without extra sugar.
Incorporate it into savory dishes like curries, soups, or sauces for a dairy-free creamy texture.
Check the label for fortification levels of calcium and Vitamin D, especially if relying on it as a primary source of these nutrients.
Things to keep in mind
While generally safe for most, soy milk can trigger soy allergies in susceptible individuals, leading to symptoms ranging from mild hives to severe anaphylaxis. It is also a source of FODMAPs, specifically galactooligosaccharides, which may cause digestive discomfort like bloating or gas in individuals with irritable bowel syndrome (IBS). There are no widely documented interactions with medications at normal serving sizes. Individuals with specific health conditions, such as those with thyroid issues, should consult a healthcare provider regarding soy intake, though moderate consumption is generally considered safe.
Unsweetened soy milk is considered a healthy beverage option for many, scoring 51/100 on FoodScore. It's often fortified with essential nutrients like Vitamin B12 (43% DV per 100g) and Vitamin D (15% DV per 100g), and contains 2.9g of protein per 100g. Its lack of added sugar and saturated fat makes it a favorable choice compared to sweetened alternatives.
Is unsweetened soy milk good for weight loss?
Unsweetened soy milk can be a good option for weight management due to its relatively low calorie count (33 calories per 100g) and absence of added sugar. Its protein content (2.9g per 100g) can also contribute to satiety, helping you feel fuller. Choosing unsweetened varieties is key to avoiding extra calories from sugar.
Is unsweetened soy milk processed?
Yes, unsweetened soy milk is classified as a NOVA class 3 food, meaning it is considered processed. This classification reflects that it's made from soybeans through a process involving extraction and often fortification. While processed, it can still be a nutritious part of a balanced diet, especially when unsweetened and fortified.
How does unsweetened soy milk compare to almond milk?
Unsweetened soy milk generally offers more protein and a more complete nutrient profile than unsweetened almond milk. Per 100g, soy milk has 2.9g protein, while almond milk typically has less than 1g. Both are usually fortified with calcium and Vitamin D, but soy milk often provides higher levels of B vitamins. Always check specific product labels for exact comparisons.
Can I use unsweetened soy milk in coffee?
Yes, unsweetened soy milk is a popular dairy-free alternative for coffee. Its creamy texture and neutral flavor blend well without altering the taste of your coffee with added sweetness. Some brands offer 'barista' versions specifically formulated to foam better for lattes and cappuccinos, but regular unsweetened soy milk works well too.
Does unsweetened soy milk contain estrogen?
Unsweetened soy milk does not contain estrogen. It contains phytoestrogens, specifically isoflavones, which are plant compounds that can weakly mimic estrogen in the body. However, their effects are much weaker than human estrogen, and moderate consumption of soy products is generally considered safe and may even offer health benefits, as supported by research.