Honeybee royal jelly is reported to have body-enlarging effects in holometabolous insects such as the honeybee. fly and silkmoth. but its effect in non-holometabolous insect species has not yet been examined. The present study confirmed the body-enlarging effect in silkmoths fed an artificial diet instead of mulberry leaves used in the previous literature. https://www.parisnaturalfoodes.shop/product-category/heart-drops-cinnamon/