human holding a small bearded dragon

What Veggies Can Bearded Dragons Not Eat? [4 Groups]

When it comes to the safety of bearded dragons, there are some vegetables that should be avoided. This is due to the fact that they may contain ingredients or chemicals that are harmful to the reptile’s health. They can also contain allergens or toxins that can cause digestive or respiratory distress if ingested.

Some vegetables may have low nutritional value or offer little benefit to bearded dragons, making them a poor choice for regular meals. It is important to understand why certain vegetables should not be fed to bearded dragons in order to provide them with a safe and nutritious diet.

Why Some Vegetables Are Unsafe

Nutritional Value

Nutritional value is important to consider when feeding bearded dragons, as some vegetables can be harmful if consumed in large quantities.

While calcium binds more efficiently to spinach than other greens, too much can be detrimental to their health.

Eating too much of these vegetables can rob them of their nutritional value, making them an unsafe choice for your beardie.


There are certain vegetables that contain high levels of toxins and can be harmful to your beardie. Avocados, for example, are high in oxalic acid which can be fatal in large doses.

Allergenic Potential

Some vegetables, such as spinach, broccoli, and romaine, may have compounds that can cause an allergic reaction in certain individuals.

Common Off-Limit Vegetables

Bearded dragons need a varied diet that includes both animal and plant-based foods. Unfortunately, not all vegetables are suitable for a bearded dragon diet.

There are several common vegetables that bearded dragons should never eat, including:

  • Onions
  • Chives
  • Mushrooms
  • Garlic
  • Avocados
  • Iceberg lettuce
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Each of these vegetables can be toxic or allergenic to bearded dragons, so it’s important to make sure they aren’t part of your pet’s diet.


While delicious in cooking and baking, onions are not safe for your reptilian companion. Onions contain high amounts of sulfur which can irritate the throat and stomach of your bearded dragon. They are also not very nutritious and can cause digestive issues. For these reasons, it is best to avoid feeding your bearded dragon onions, either raw or cooked.


Chives contain a high content of oxalic acid, which can lead to health issues for your reptile if consumed in large amounts. If you must feed chives to your bearded dragon, it’s best to feed them in small amounts and infrequently.


Mushrooms contain a toxin called agaritine that can cause a variety of health problems, including digestive distress and liver damage. If you’re looking for a safe vegetable replacement, try some dark leafy greens like kale or spinach instead. These are rich in vitamins and minerals and can provide your dragon with the nutrition it needs. We will discuss more veggies your bearded dragon can eat in another section.


Garlic is a common ingredient in food, but it’s not an appropriate veggie for bearded dragons. Garlic is a member of the Allium family, which also includes onions, leeks, and shallots. While these veggies are safe for human consumption, they can be dangerous if consumed by bearded dragons.

Garlic is not toxic to bearded dragons but it can cause gastric irritation and can also reduce the absorption of certain minerals and vitamins. Garlic also has allergenic potential, meaning that it can cause a reaction in some bearded dragons. It’s best to avoid feeding garlic to your bearded dragon.


Avocados contain persin, a fungicidal toxin that is poisonous to all animals. If that weren’t bad enough, avocados are high in oxalic acid which can be fatal to bearded dragons.

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Iceberg Lettuce

Not only is Iceberg lettuce low in nutritional value, but it also has a high water content, making it difficult for bearded dragons to digest.

As a result, iceberg lettuce can cause digestive distress and other health issues in bearded dragons if consumed.

Safe Veggie Alternatives

Fortunately, there are many safe vegetable alternatives for bearded dragons. Vegetables like the following can all be added to your bearded dragons diet:

  • Bell peppers
  • Carrots
  • Spinach
  • Beets
  • Beet greens
  • Celery,
  • Okra
  • Parsley
  • Radicchio

Cactus pad or prickly pear is another desert delicacy that is high in calcium and can be fed to your pet.

How to Serve Vegetables for Bearded Dragons

Preparing vegetables for your bearded dragon is a vital part of keeping your pet healthy.

You should always wash vegetables before feeding them to your pet. To ensure the highest quality nutrition, you should also steam or lightly cook most vegetables before offering them to your dragon.

Leafy greens like Swiss chard, spinach, and beet greens should be fed sparingly, as they contain oxalates that can bind calcium and other trace minerals, preventing their absorption.

Vegetables with a high water content, like bell peppers, can be served raw or lightly cooked.

Key Points

  • It’s important to remember that when it comes to bearded dragons, not all vegetables are safe. Some vegetables can be harmful to the dragon’s health, either due to lack of nutritional value, toxicity, or allergenic potential.
  • It’s important to research before feeding a bearded dragon and only provide the safe vegetables recommended by experts.
  • To ensure safety, it is best to prepare the vegetables properly, to ensure that they are properly digested and do not cause any issues for your pet.