Let's see, 100g of cooked rice has 2.7g protein, 0.3g fat and 28g carbohydrate, according to USDA data. The stated increases yield 2.9g protein and 0.32g fat, not exactly a stunning increase. Referenced research is behind a paywall so I cannot discern from that how accurate this is. None of which, of course, detracts from its value as proof of concept.