Bombyx mori mainly feeds upon the tender leaves of Morus alba. The leaf contains such as fats, lipids, proteins minerals and water which may in influence the growth and metamorphosis of the larvae. if the diet does not contain all the mineral nutrients, the growth and metabolisms is affected adversely which may lead deformation in cocoon formations as well as the quality of the silk. The paper reports the lipid profile of mulberry leaves and its effects on growth and metabolism of the larve.