Beginners Guide to What Worms Won’t Eat in your Worm Farm
Understanding the types of foods your composting worms (red wrigglers) will AVOID and NOT eat will help prevent some common worm farming mistakes. So to help those new to vermicomposting, we’ve put together a detailed list of foods to avoid adding to your worm farms.

TL;DR
- vermicomposting worms (red wrigglers) survive on a primarily vegetarian diet
- supplement your worms with a variety of materials, including paper and cardboard
- find out the foods to avoid, so your worms stay healthy and alive
Okay, we put our hands up and admit that we have made the mistake of adding the incorrect foods to our worm farms.
In fact, one of our mistakes (that we’ll detail later) cost us an entire population of worms. It was a devastating lesson but one we will never forget.
So to help budding vermicomposters avoid these costly mistakes, we’ve put together this quick guide for what NOT to feed your worm farms.
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If you are interested in finding out What Worms LIKE to eat, check out our guide HERE.
What Can’t Worms Eat?
First things first, let’s begin with the essential things – what NOT to feed your worms.
Quick Note: This guide discusses the diet of the most common composting worm for worm castings production, the Red Wriggler worm (eisenia fetida). Some worm farmers use other composting worms, such as nightcrawlers or Indian Blues. However, this worm farm feeding guide doesn’t consider their specific diets.
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