Yes, bearded dragons can eat bananas, but only as an occasional treat. A vet-reviewed Chewy guide suggests one or two thin slices, once a week at most, for an adult. Bananas have more sugar than strawberries or blueberries, and over four times as much phosphorus as calcium. Peel it, slice it thin, and serve it plain. Never feed the peel.
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Banana nutrition for a bearded dragon
Bearded dragons need more calcium than phosphorus, and bananas have more than four times as much phosphorus as calcium. USDA figures for raw bananas, per 100 g:
| Nutrient | Per 100 g | What it means |
|---|---|---|
| Water | 75 g | Less watery than berries |
| Calcium | 5 mg | Very low |
| Phosphorus | 22 mg | More than four times the calcium |
| Ca:P ratio | 0.23 : 1 | The wrong way round for a dragon |
| Total sugars | 12.2 g | The highest of the fruits below |
| Fiber | 2.6 g | Fine in small amounts |
| Potassium | 358 mg | Chewy lists it as a benefit |
Source: USDA FoodData Central, “Bananas, raw” (FDC 173944). Chewy’s guide says bananas are high in sugar and phosphorus, “which means moderation is key.”
Bananas compared with other fruit and greens
Bananas have the most sugar and the poorest Ca:P ratio of the common fruits here. Collard greens, a daily staple in our food guide, are shown for contrast. All figures are USDA FoodData Central, per 100 g raw.
| Food | Calcium | Phosphorus | Ca:P | Sugars | Verdict |
|---|---|---|---|---|---|
| Collard greens | 232 mg | 25 mg | 9.3 : 1 | 0.5 g | Staple, daily |
| Papaya | 20 mg | 10 mg | 2 : 1 | 7.8 g | Treat |
| Strawberries | 16 mg | 24 mg | 0.67 : 1 | 4.9 g | Treat |
| Blueberries | 6 mg | 12 mg | 0.5 : 1 | 10 g | Rare treat |
| Banana | 5 mg | 22 mg | 0.23 : 1 | 12.2 g | Rare treat |
How much banana, and how often
| Age | Banana? | How much |
|---|---|---|
| Baby | Very rarely | Chewy says only a very small piece, and not often. Insects and greens come first |
| Juvenile | Rarely | A small piece now and then, once it eats greens well |
| Adult | Yes, as a treat | One or two thin slices, once a week at most (Chewy) |
Chewy’s guide keeps fruit to no more than 5% of the diet. ReptiFiles advises generally avoiding fruit, so a dragon that never gets banana is missing nothing. Its diet should be greens and gut-loaded insects such as dubia roaches.
How to prepare banana
- Use a ripe banana (Chewy).
- Peel it and throw the skin away.
- Slice it thin, into coin-sized pieces, then cut those smaller for a small dragon.
- Serve it plain, with no sugar, honey or seasoning, mixed into the salad.
- Dust the salad with calcium as usual. Our calcium guide has the schedule.
- Clear away leftovers the same day. Banana is sticky and soft, and goes off quickly in a warm enclosure.
Risks of too much banana
- Weight gain and diarrhea from the high sugar content (Chewy).
- Dental disease. Chewy says the soft texture and acidity can contribute to gingivitis, tartar build-up and even bone loss.
- Calcium balance. More phosphorus than calcium works against the calcium your dragon needs for strong bones. Good UVB and calcium dusting matter far more than any single treat.
- Crowding out real food. Sweet fruit fills a dragon up without the protein of insects or the calcium of greens.
Banana peel, chips and other forms
| Form | OK? | Why |
|---|---|---|
| Fresh, ripe, peeled | Yes | The only form to offer |
| Peel | No | Chewy says peels are hard to digest and may carry pesticides |
| Banana chips or dried banana | No | Chewy advises avoiding dried or sugary banana snacks made for people |
| Plantain chips | No | Chewy lists these to avoid too |
| Banana bread, yogurt or baby food | No | Added sugar, and not dragon food |
Tools we would use
- Calcium: Zoo Med Repti Calcium without D3. Dust the salad to make up for fruit’s low calcium.
- Tongs: Reptile feeding tongs. Chewy suggests tongs or a dish to keep sticky fruit off the substrate.
- Scale: Digital kitchen scale in grams. A weekly weigh-in shows early if treats are adding weight.
For the full menu, see our bearded dragon food guide.
FAQ
How much banana can a bearded dragon eat?
One or two thin slices for an adult, once a week at most. A vet-reviewed Chewy guide says not to offer banana daily.
Can baby bearded dragons eat bananas?
Only a very small piece, and not often, according to Chewy. Babies need insects and greens to grow.
Can bearded dragons eat banana peels?
No. Chewy says banana peels are hard to digest and may contain pesticides.
Are bananas or strawberries better for bearded dragons?
Strawberries. USDA figures show they have well under half the sugar of bananas and a better calcium-to-phosphorus ratio. Both are treats only.
Sources
- USDA FoodData Central: Bananas, raw (FDC 173944)
- USDA FoodData Central: Strawberries, raw (FDC 167762)
- USDA FoodData Central: Blueberries, raw (FDC 171711)
- USDA FoodData Central: Collards, raw (FDC 170406)
- USDA FoodData Central: Papayas, raw (FDC 169926)
- Chewy: Can bearded dragons eat bananas? (reviewed by Dr. Melissa Witherell)
- ReptiFiles: Bearded dragon care guide