Insects are a sustainable and nutritious alternative protein source, and crickets are an economically important insect in the North American entomophagy industry. A primary goal of agricultural research is to increase yield. Increased body size in cricket farms is desired, but we have little knowledge on how to do it at such a large scale. Diet supplementation using honey bee royal jelly is a potential solution, as there is evidence that royal jelly enhances body size of other insect species including one orthopteran. The mechanisms behind how royal jelly does this remain unclear. To determine the effect of royal jelly on a farmed cricket species, 96 Gryllodes sigillatus were obtained from a local Canadian cricket farm, individually housed, and split into two treatment groups: half were reared on a commercially available cricket diet, while the other half were reared on the same diet mixed with 15% w/w fresh royal jelly. Body size and mass measurements were taken weekly for six weeks (approximate time to adulthood). We discovered a female-only effect of royal jelly on G. sigillatus: females fed the royal jelly diet grew to be 21% heavier, and this effect was driven by significantly longer abdomens containing 66% more eggs each compared to those fed the basal diet. We are now replicating this experiment in a simulated farm environment to determine whether increased female fertility from royal jelly persists in high-density rearing environments like an active commercial farm.