While almond milk does not pose any dangers to human health, it does contain much less protein and calcium than dairy milk, according to Mother Jones. Some brands of almond milk contain carrageenan, a product derived from seaweed that stabilizes beverages. Some researchers claim that carrageenan leads to gastrointestinal inflammation.
One ounce of almonds has 6 grams of protein, or about the same as an egg. An 8-ounce serving of Califia, one of the leading brands of almond milk, has 1 gram of protein. That means that a handful of the nuts has about as much protein as a 48-ounce bottle of almond milk, notes Mother Jones.
However, almond milk consists of ground almonds with filtered water. While Califia claims that its almond milk has 50 percent more calcium than milk and 50 percent of the daily recommended intake for vitamin E, whole almonds are still more nutritious. One ounce of almonds has 74 milligrams of calcium, while a cup of whole milk has 290. Those almonds also have 7 milligrams of vitamin E, a little more than a third of the daily recommended intake, explains Mother Jones.
All in all, almond milk does not provide enough protein to justify substituting it for dairy milk. Because of its more widespread availability and its higher protein level, soy milk is a recommendation for those wanting to get away from dairy milk. However, some soy milk brands also contain carrageenan, which some people should avoid consuming, according to Dr. Andrew Weil.