Fumaric Acid has proven to be a particularly effective additive to piglet feed during the post-weaning period. The inclusion of Fumaric Acid and the resultant adjustment of the pH value demonstrate improved weight gain, food consumption, and feed conversion ratio. Fumaric Acid remains longer in the gut and helps to maintain pH throughout killing harmful microorganisms. Industrial uses of Fumaric Acid include: unsaturated polyester, alkyd resins, printing inks, paper sizing, starch and helps in lowering reaction temperatures and modify properties.