Can hermit crabs eat cashews?


Hermit crabs are fascinating and unique creatures that have captured the hearts of many pet owners around the world. These adorable crustaceans may be small, but they bring a world of joy, wonder, and affection to our lives. As hermit crab enthusiasts, it's essential to provide the love, dedication, and support necessary to keep our little friends happy and healthy. One common question that arises about hermit crab care is, "Can hermit crabs eat cashews?" Let's dive into this topic and explore the dietary needs and feeding practices for hermit crabs.

Hermit Crabs: Natural Diet and Nutritional Needs

Before discussing the suitability of cashews for hermit crabs, it's essential to understand their natural diet and nutritional needs. In the wild, hermit crabs are omnivores, which means they eat both plant matter and other animals. They primarily feed on decaying vegetation, fruits, seaweed, and small insects or other invertebrates. In captivity, hermit crab owners typically provide a mix of fresh, high-quality fruits, vegetables, and protein sources to mimic their natural diet.

Hermit crabs require a variety of nutrients to support their overall health, including calcium, trace elements, and various vitamins and minerals. Calcium, in particular, plays a crucial role in supporting shell growth, molting, and overall well-being. Therefore, it's essential to provide a well-balanced diet to ensure our hermit crab friends are thriving.

Can Hermit Crabs Eat Cashews?

Now, to the main question: Can hermit crabs eat cashews? The simple answer is yes – but only in moderation and as an occasional treat. Cashews are an excellent source of protein and provide trace elements and nutrients, like potassium, magnesium, and vitamins E and B-6. However, cashews are also high in fat, which can be detrimental to a hermit crab's diet if fed in large quantities or frequently.

It's also important to ensure the cashews are unsalted and not prepared with any additives or preservatives. Salt is unhealthy for hermit crabs and can lead to problems such as dehydration, while additives and preservatives are harmful and may cause adverse reactions. If you choose to feed your hermit crab cashews, offer them raw, organic, and unsalted cashews with no added ingredients.

Feeding Guidelines and Other Snack Options

When offering cashews or any other snack to your hermit crab, moderation is critical. A small piece of cashew every week or two, along with a balanced diet, can provide the necessary nutrients and variety to keep your hermit crab thriving. It's essential to monitor your hermit crab's overall health and adjust their diet accordingly if you notice any adverse changes.

In addition to cashews, there are many other healthy foods you can offer your hermit crab as occasional treats. Some options include:

  • Fresh fruits, such as apples, berries, and bananas
  • Vegetables, like carrots, spinach, and bell peppers
  • Protein sources, like boiled egg, unsalted nuts, and cooked meat (unseasoned and without fat)

Always ensure that you wash vegetables and fruits thoroughly to remove any traces of pesticides before offering them to your hermit crabs. Also, avoid giving your hermit crab any food that has been seasoned, as it can harm their health.


To sum up, hermit crabs can eat cashews occasionally and in moderation, as they provide essential nutrients and variety to their diet. However, high-fat content and the potential presence of salt, additives, and preservatives must be considered. As responsible hermit crab owners, it's our duty to provide a well-balanced and nutritious diet, which in turn will ensure the happiness and longevity of our cherished little friends.

Can Hermit Crabs Eat Nuts?

Absolutely, hermit crabs can indeed eat nuts! Feeding your little crabby friends a variety of unsalted nuts can be a great way to introduce different flavors and textures into their diet, as well as providing essential nutrients for their growth and overall health. Some popular nuts to offer your hermit crab include:

  • Walnuts
  • Pistachios
  • Almonds

It's important to remember that these nuts should be unsalted and preferably raw. Salt is harmful to hermit crabs, and they may avoid eating the nuts if they sense it.

What Other Foods Can Hermit Crabs Eat?

In addition to nuts, hermit crabs can enjoy a well-rounded diet that includes a variety of other foods. Some options for your hermit crab can include:

  • Unsweetened dried fruits, such as goji berries, mango, pineapple, raisins, and coconut
  • Fresh vegetables, like carrots, spinach, and bell pepper
  • High-quality commercial hermit crab food or pellets
  • Cooked, unseasoned meat, like chicken and fish
  • Seafood, particularly shrimp and krill
  • Calcium-rich sources, such as cuttlebone and crushed eggshells

Be sure to offer your hermit crab a mix of these food items to ensure they receive a diverse and nutritious diet.

How Often Should I Feed My Hermit Crab?

Hermit crabs typically eat a small amount of food every day. It's best to provide them with fresh food each day or every other day, depending on their size and activity level. Be sure to remove any uneaten food from their enclosure after 24 hours to prevent the growth of mold or bacteria.

What Foods Should I Avoid Feeding My Hermit Crab?

While hermit crabs can enjoy a diverse range of foods, there are some items that you should avoid offering them. These include:

  • Salty, greasy, or pre-packaged human foods
  • Citrus fruits, like oranges and lemons, as they can be too acidic
  • Spicy foods, as they may cause digestive distress
  • Foods with added sugar or artificial sweeteners
  • Foods with strong odors or flavors, like garlic and onion, since these are not part of a hermit crab's natural diet

By avoiding these foods, you help to ensure your hermit crab stays healthy and happy.

How Do I Introduce New Foods to My Hermit Crab?

Hermit crabs can sometimes be hesitant about trying new foods, but you can encourage them to explore different flavors and textures by gradually introducing the new items. You can do this by mixing small amounts of the new food with a food they already enjoy. Over time, you can increase the amount of the new food while decreasing the familiar food.

Keep in mind that hermit crabs have individual tastes and it may take some experimenting to find out which foods your crab enjoys the most.

In conclusion, providing your hermit crab with a healthy and diverse diet, including nuts and other nutrient-rich foods, is essential to their well-being. Make sure to offer them a wide variety of foods, avoid harmful items, and keep an eye on their dietary preferences to keep your hermit crab happy and healthy.