Looking for a tasty and nutritious drink besides cow’s milk and store-bought juice. 90% of which is made from concentrate, I decided to do some research on almond milk and soy milk to see which one is the better choice.
One of the benefits of these two choices is that they are great for those who want to lose weight. Both almond and soy milk contain little saturated fat, sugar or calories.
Unfortunately, neither of them naturally contain much calcium, though store-bought milk can be calcium-fortified.
Compared to almond milk, soy milk is richer in nutrition, especially protein (the stereotype that almond milk is a good source of protein is false) and more environmentally friendly as soy requires less water than almond.
Soy milk is allegedly related to weakened fertility in men. A Harvard study in 2009 reported that soy milk consumption might have detrimental effects on male fertility.
The soy study was part of a long-term investigation of environmental factors and fertility. The subjects were 99 male partners of sub-fertile couples. Each man had a medical evaluation and complete semen analysis, and each provided a detailed three-month dietary history that evaluated 15 soy-based foods, ranging from tofu and tempeh to soy milk, veggie burgers, and “energy bars” containing soy protein.
The study found that the men who consumed the most soy had the lowest sperm counts. And it didn’t take much soy to do the trick — as little as one portion every other day was linked to a reduction in sperm count. All in all, the men who ate the most soy had counts that averaged 41 million fewer sperm per cubic milliliter than men who ate the least. The impact was greatest in overweight men, and the results remained valid after age, smoking, alcohol, caffeine, body mass index, and the time between specimen collection and the preceding ejaculation were taken into account.Harvard Medical School
However, the view was challenged by a study by Harvard School of Public Health in 2015 and another study in 2010. A definite conclusion on the matter remains to be determined. Given all the factors above, soy milk looks to be the winner in this contest.