10. Worcestershire Sauce
We all use is to spice up our meals. However, this sauce comes from anchovies which accounts for its savoury taste. So, forget any recipe with Worcestershire sauce being vegetarian!
It truly is sad that food manufacturers sneak in animal products in food and advertise it as being vegan. Whether for health or humane reasons, people who choose to go vegan are admirable. So why spoil it for them?