The recent scandal over horse meat found in “beef” products in the UK has sent a wave of disgust and panic through the country and beyond — while last year’s uncovering of the true ingredients in pink slime caused some in the US to reconsider their meat-eating habits. But that’s just the tip of the iceberg when it comes to gross ingredients in our everyday foods. From crushed insects, to shellac and a substance derived from an unsettling part of beaver anatomy, there are many disgusting—and commonly used—food additives out there. Read on to learn more about six of the most surprising and gross ingredients in your food.