 This study investigated the potential of nitrogen and digestate supplementation to increase the yield of lactic acid produced during direct food waste fermentation. The results showed that nitrogen supplementation was effective in increasing the rate of lactic acid production, while digestate supplementation had a positive effect on the final lactic acid concentration. Additionally, sucrose supplementation helped to maintain the microbial community structure and promote the growth of lactobacillus species, which are known to produce lactic acid. These findings suggest that nitrogen and digestate supplementation can be used to improve the efficiency of lactic acid production from food waste, making it more viable for commercial applications. This article was authored by Christopher H. Bowman, BDS Mckin, BDS Mckin, and others.