The protein and fat content vary considerably with the diet of the BSF. I grow mine on a feed based diet that does not vary. They run 49.5% protein and 3.7% fat (dry matter basis). At 80 percent moisture content, it still works out to about 10% protein and 0.7% fat for live larvae. The rest is basically water and ash. If you are used to feeding pelletized food, you have to adjust your feed rate with BSF to compensate for the 80% moisture content.Originally Posted by rfeiller