The amount of potassium in Soylent is interesting. I noticed a while ago that I wasn't getting enough potassium in my diet, went searching for a supplement, and found that you can't buy an OTC supplement that contains more than 100mg. It turns out the FDA severely restricts the amount of potassium you can get in OTC supplements to prevent certain health risks.[1] I wonder how they get around that restriction.

[1]: http://www.berkeleywellness.com/supplements/minerals/article...