There's a lot of misinformation out there, but dietitian Julie Upton, MS, RD, of Appetite For Health is here to shed light on dairy-free milk myths and how they compare to one another. Moo ve over, cow's milk. As more shoppers choose a dairy-free diet, alternatives for cow's milk are overflowing with nut-, pea-, and grain-based choices. If you want to know how the most popular nondairy beverages stack up nutritionally, here's a guide: Soymilk One Cup Serving (Original Flavor): 100 calories, 4g fat, 0.5g saturated fat, 6g protein, 2-8g sugar, 30 percent DV calcium, and 30 percent DV vitamin D. Soy milk also offers vitamin A, iron, riboflavin, folate, vitamin B12, potassium, and magnesium. Soy provides beneficial phytoestrogens that provide heart health benefits too. ADVERTISEMENT Soymilk can be used when cooking as a one-for-one substitution for dairy milk. It works for many dishes and baking, but soymilk may separate when exposed to high heat or acidic fo...