I’ve noted that many of you have expressed concern over the inclusion of oat powder or oat bran in your DIY Soylent. The primary hesitations ( other than philosophical ) seems to be the extremely high levels of manganese, inhibitory quality of the phytates, and gluten contamination.
After some research, I would like to propose white bean powder as an alternative. As you can see in the comparison links below, white bean powder has a much more balanced micronutrient load, a very balanced omega 3 to 6 load, plenty of fiber, and low glycemic load. Also, roughly half the phytates of grains.
UPDATE - Warning
Consuming uncooked beans can be toxic! Raw beans contain Phytohaemagglutinin, a lectin, that in high levels is found to be a toxin. You can remove this toxin by boiling for at least 10 minutes at 100 degrees. This information makes white bean flour a less than desirable substitute for oat powder.