This is the most important ingredient in any homemade fruit fly media. Josh's Frogs Brewers Yeast is the highest quality around. Full of vitamins and high in protein.

TYPICAL ANALYSIS 
Crude Protein.............................40.0%
Crude Fat.....................................1.5%
Crude Fiber..................................1.0%
Ash...............................................5.5%
Moisture.......................................6.0%
M.E. (Calculated)..................1,423 Kcal/lb

Brewtech Dried Brewers Yeast is 100% dried Saccharomyces cerevisiae yeast from the brewing industry. Brewtech is manufactured by International Ingredient Corporation at a facility solely dedicated to drying brewers yeast. The unique handling and drying process makes Brewtech the freshest and most palatable brewers yeast available on the market. Prior to drying, Brewtech is naturally debittered and the liquid yeast is kept cold to prevent fermentation. The liquid yeast is then dried fresh using the gentle drying process of roller dyers. The result is a yeast product in which nutrient levels and the fresh yeast aroma and taste have been maintained. The unique roller drying process also results in a fine textured yeast that has superior tableting characteristics compared to spray-dried yeasts. Brewtech is a high quality protein supplement that is also rich in naturally occurring B-vitamins, and trace minerals. Brewtech is research proven, providing nutritional, palatability, and digestibility enhancement to animal and aquaculture feeds and petfoods. Brewtech is guaranteed to be free of any antibiotics.