In the absence of glucose - toxicant mixtures, glucose - averse cockroaches grow more slowly than normal roaches in laboratory settings where there are no nutritional stresses. (sciencedaily.com)
«Cells depend on cellular respiration as an energy source and during periods of food deprivation or in the absence of glucose, these cells can also resort to ketosis as an additional source of energy.» (reshappers.com)
This works because in the absence of glucose, the Beta Hydroxybutyrate is able to cross blood cells and enter the brain to convince it to use ketones as a source of energy instead of sugar and carbs. (freshtopia.net)