You can buy a soy milk maker from Asian grocery stores and control the sugar intake till you get it down to 0. You buy soy beans (very cheap, also from the Asia

You can buy a soy milk maker from Asian grocery stores and control the sugar intake till you get it down to 0. You buy soy beans (very cheap, also from the Asian store) and soak it over night. Then you put the beans in the soybean maker and it'll heat up and churn and churn till you get soy milk! Then you strain it and enjoy our fresh soy milk. What you do with the left overs is up to you, but you can make food out of it (https://en.wikipedia.org/wiki/Okara_(food) https://en.wikipedia.org/wiki/Okara_(food)) or just use it as compost.