Care Guide

Safe & Unsafe Foods for Hermit Crabs

A comprehensive reference of what you can and cannot feed your hermit crabs. When in doubt, always research before offering a new food.

🔍

✓Safe

!Caution

✕Toxic

Food	Status	Category	Notes
Coconut	✓Safe	Fruits	Excellent source of fat and fiber. Use organic, unsweetened.
Mango	✓Safe	Fruits	Rich in vitamins A and C. Serve fresh or dried.
Banana	✓Safe	Fruits	Good source of potassium. Offer in small amounts.
Apple	✓Safe	Fruits	Remove seeds first. Organic preferred.
Blueberry	✓Safe	Fruits	High in antioxidants. A favorite treat.
Grape	✓Safe	Fruits	Cut into small pieces. Seedless preferred.
Papaya	✓Safe	Fruits	Great source of enzymes and carotenoids.
Strawberry	✓Safe	Fruits	Use organic only due to pesticide concerns.
Citrus (Orange, Lemon)	!Caution	Fruits	Very acidic. Offer sparingly, if at all.
Spinach	✓Safe	Vegetables	Rich in iron and calcium. Offer blanched.
Carrot	✓Safe	Vegetables	Great source of beta-carotene. Grate or blanch.
Sweet Potato	✓Safe	Vegetables	Excellent staple food. Cook before serving.
Zucchini	✓Safe	Vegetables	Mild flavor, good hydration. Serve raw or cooked.
Kale	✓Safe	Vegetables	Nutrient-dense superfood for crabs. Blanch lightly.
Broccoli	✓Safe	Vegetables	Good calcium source. Offer small florets.
Corn	✓Safe	Vegetables	Use unsalted, non-GMO. Crabs enjoy the kernels.
Onion	✕Toxic	Vegetables	Contains thiosulfate, which is harmful. Never feed.
Garlic	✕Toxic	Vegetables	Toxic to hermit crabs. Avoid completely.
Dried Shrimp	✓Safe	Proteins	Excellent protein and chitin source. A staple.
Bloodworms (freeze-dried)	✓Safe	Proteins	High protein treat. Readily available at pet stores.
Boiled Egg	✓Safe	Proteins	Include crushed shell for calcium. No salt or oil.
Chicken (unseasoned)	✓Safe	Proteins	Plain, cooked chicken only. No spices or salt.
Fish (unseasoned)	✓Safe	Proteins	Offer cooked, unseasoned fish in small portions.
Processed Meat	✕Toxic	Proteins	Contains salt, preservatives, and nitrates. Never feed.
Cuttlebone	✓Safe	Calcium	Essential calcium source. Keep available at all times.
Crushed Oyster Shell	✓Safe	Calcium	Great supplemental calcium. Sprinkle on food.
Eggshell (crushed)	✓Safe	Calcium	Bake at 200F, crush finely. Free calcium source.
Coral Sand	✓Safe	Calcium	Natural calcium supplement from substrate.
Oats (rolled)	✓Safe	Grains	Plain, unflavored rolled oats. Good fiber source.
Brown Rice (cooked)	✓Safe	Grains	Cook without salt. Offer in small amounts.
Popcorn (air-popped, no salt)	✓Safe	Grains	Plain only. No butter, salt, or flavoring.
Wheat Germ	✓Safe	Grains	Nutrient-rich addition to food mix.
White Bread	!Caution	Grains	Low nutrition, may contain preservatives. Avoid if possible.
Chocolate	✕Toxic	Toxic	Contains theobromine. Highly toxic to hermit crabs.
Table Salt	✕Toxic	Toxic	Iodized salt is harmful. Use dechlorinated marine salt only.
Pesticide-treated produce	✕Toxic	Toxic	Chemical residues are deadly. Always use organic.
Dairy Products	✕Toxic	Toxic	Crabs cannot digest lactose. Avoid all dairy.
Avocado	✕Toxic	Toxic	Contains persin, which is toxic to hermit crabs.
Coffee / Caffeine	✕Toxic	Toxic	Stimulants are harmful. Never expose crabs to caffeine.

Coconut

✓Safe

Excellent source of fat and fiber. Use organic, unsweetened.

Fruits

Mango

✓Safe

Rich in vitamins A and C. Serve fresh or dried.

Fruits

Banana

✓Safe

Good source of potassium. Offer in small amounts.

Fruits

Apple

✓Safe

Remove seeds first. Organic preferred.

Fruits

Blueberry

✓Safe

High in antioxidants. A favorite treat.

Fruits

Grape

✓Safe

Cut into small pieces. Seedless preferred.

Fruits

Papaya

✓Safe

Great source of enzymes and carotenoids.

Fruits

Strawberry

✓Safe

Use organic only due to pesticide concerns.

Fruits

Citrus (Orange, Lemon)

!Caution

Very acidic. Offer sparingly, if at all.

Fruits

Spinach

✓Safe

Rich in iron and calcium. Offer blanched.

Vegetables

Carrot

✓Safe

Great source of beta-carotene. Grate or blanch.

Vegetables

Sweet Potato

✓Safe

Excellent staple food. Cook before serving.

Vegetables

Zucchini

✓Safe

Mild flavor, good hydration. Serve raw or cooked.

Vegetables

Kale

✓Safe

Nutrient-dense superfood for crabs. Blanch lightly.

Vegetables

Broccoli

✓Safe

Good calcium source. Offer small florets.

Vegetables

Corn

✓Safe

Use unsalted, non-GMO. Crabs enjoy the kernels.

Vegetables

Onion

✕Toxic

Contains thiosulfate, which is harmful. Never feed.

Vegetables

Garlic

✕Toxic

Toxic to hermit crabs. Avoid completely.

Vegetables

Dried Shrimp

✓Safe

Excellent protein and chitin source. A staple.

Proteins

Bloodworms (freeze-dried)

✓Safe

High protein treat. Readily available at pet stores.

Proteins

Boiled Egg

✓Safe

Include crushed shell for calcium. No salt or oil.

Proteins

Chicken (unseasoned)

✓Safe

Plain, cooked chicken only. No spices or salt.

Proteins

Fish (unseasoned)

✓Safe

Offer cooked, unseasoned fish in small portions.

Proteins

Processed Meat

✕Toxic

Contains salt, preservatives, and nitrates. Never feed.

Proteins

Cuttlebone

✓Safe

Essential calcium source. Keep available at all times.

Calcium

Crushed Oyster Shell

✓Safe

Great supplemental calcium. Sprinkle on food.

Calcium

Eggshell (crushed)

✓Safe

Bake at 200F, crush finely. Free calcium source.

Calcium

Coral Sand

✓Safe

Natural calcium supplement from substrate.

Calcium

Oats (rolled)

✓Safe

Plain, unflavored rolled oats. Good fiber source.

Grains

Brown Rice (cooked)

✓Safe

Cook without salt. Offer in small amounts.

Grains

Popcorn (air-popped, no salt)

✓Safe

Plain only. No butter, salt, or flavoring.

Grains

Wheat Germ

✓Safe

Nutrient-rich addition to food mix.

Grains

White Bread

!Caution

Low nutrition, may contain preservatives. Avoid if possible.

Grains

Chocolate

✕Toxic

Contains theobromine. Highly toxic to hermit crabs.

Toxic

Table Salt

✕Toxic

Iodized salt is harmful. Use dechlorinated marine salt only.

Toxic

Pesticide-treated produce

✕Toxic

Chemical residues are deadly. Always use organic.

Toxic

Dairy Products

✕Toxic

Crabs cannot digest lactose. Avoid all dairy.

Toxic

Avocado

✕Toxic

Contains persin, which is toxic to hermit crabs.

Toxic

Coffee / Caffeine

✕Toxic

Stimulants are harmful. Never expose crabs to caffeine.

Toxic

Disclaimer

This list is compiled from widely accepted hermit crab care resources but is not exhaustive. Always research new foods thoroughly before offering them to your crabs. When in doubt, leave it out. Organic, pesticide-free options are always preferred.