There is provided methods, kits, combinations, and compositions comprising a Aspergillus oryzae protease enzyme, a Bacillus subtilis protease enzyme, and a Aspergillus niger lipase enzyme for treating a digestive disorder in a subject in need thereof. The methods, kits, combinations, and compositions may also be used along with an agent (or combination of agents) for raising the gastric pH, a digestive enzyme useful in enhancing digestive activity, a dietary supplement, or a pharmaceutical agent.