Fish sauce can be utilized as an alternate for Worcestershire sauce. The fish sauce contains fish or krill and is mixed with salt and then fermented for up to 2 years. Sometimes add Achnovy paste. It varies countries to country. Worcestershire sauce is made with lots of ingredients like tamarind, vinegar, wine, anchovy essence, molasses, sugar, garlic, and spices. Fish sauce and Worcestershire sauce both have amazing umami flavor, but fish sauce is saltier than Worcestershire sauce.