What Do Pill Bugs Eat?
Pill bugs, also known as rolly pollies, are small, terrestrial crustaceans that belong to the order Isopoda. They are found in a wide range of habitats, from forests to grasslands, and are known for their ability to roll into a ball for defense. One of the most common questions about pill bugs is what they eat. In this article, we will explore the dietary habits of pill bugs and provide information on what they eat.
Dietary Habits of Pill Bugs
Pill bugs are omnivores, which means they eat both plants and animals. Their diet consists of decaying plant matter, such as rotting leaves and wood, as well as small insects and other invertebrates. They also consume fungi and algae, and have been known to eat carrion and dead animals. In captivity, pill bugs can be fed a diet of vegetables, fruits, and commercial insect food.
Plant-Based Foods
Pill bugs are important decomposers in many ecosystems, and play a key role in breaking down organic matter. They feed on a wide range of plant-based foods, including:

- Rotting leaves
- Decaying wood
- Fungi
- Algae
- Grasses
- Weeds
Animal-Based Foods
In addition to plant-based foods, pill bugs also eat small animals and invertebrates. Some examples of animal-based foods that pill bugs eat include:
- Insect eggs and larvae
- Spider silk and other arachnid waste
- Small insects, such as ants and beetles
- Worms and other invertebrates
What Pill Bugs Don't Eat
Pill bugs have a number of dietary restrictions that are worth noting. They do not eat:
- Fats and oils
- Proteins from large animals
- Pesticides and other toxins
- Anything that is too large to fit in their mouth
Feeding Pill Bugs in Captivity
If you are keeping pill bugs in captivity, it's essential to provide them with a balanced diet. Here are some tips for feeding pill bugs in captivity:

- Provide a varied diet that includes both plant and animal foods
- Offer a source of calcium, such as crushed eggshells or cuttlebone
- Avoid overfeeding, as this can lead to digestive problems
- Change the food and water regularly to keep the environment clean and healthy
Conclusion
In conclusion, pill bugs are important ecosystem engineers that play a key role in breaking down organic matter. They eat a wide range of plant and animal foods, and have a number of dietary restrictions that are worth noting. By understanding what pill bugs eat, we can better appreciate their importance in the ecosystem and take steps to provide them with the care and nutrition they need.