Crested Geckos, Diet and Food, Geckos

Can Crested Geckos Eat Raspberries or Not?

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by The Pet Engineers


Insects, larvae, and fruits are part of a gecko’s diet. But, does that mean any fruit, insects or larvae can be fed to them? There are quite a number of fruits that are unsuitable to be fed to crested geckos.

Doing so can cause potential health problems in them.

This makes you wonder if crested geckos can eat raspberries?

Well, here’s why they can and why you shouldn’t feed raspberries to your crested gecko if you value its life.

Can Crested Geckos Eat Raspberries?

Yes, crested geckos can eat raspberries. But, they are not recommended to be included in their diet due to the potential problems it will cause to your crested gecko.

Raspberries contain high amounts of oxalic acid which is harmful to geckos. 

Nutritional Value Of Raspberries

Nutritional value of raspberries
Nutritional value of raspberries

Should You Feed Raspberries To Baby and Juvenile Crested Geckos?

No, you shouldn’t feed raspberries to baby and juvenile crested geckos. Doing so will cause health problems in your gecko and worst-case scenario death.

Your gecko will be better off substituting raspberries with other fruits such as bananas, blueberries, and blackberries. 

baby crested gecko
Baby Crested Gecko

Why You Shouldn’t Feed Raspberries To Crested Geckos

The reason why you shouldn’t feed raspberries to crested geckos is due to the high quantity of oxalic acid.

The chemical compound prevents the absorption of calcium causing metabolic bone disease in your gecko. If not treated, your gecko will have weak bones and might even die. 

What Is The Ratio Of Calcium To Phosphorus In Raspberries?

The ratio of calcium to phosphorus in raspberries is 1:1.2. This indicates that there are 1.2 times as much phosphorus as calcium in the raspberry. 

Importance of Calcium to Phosphorus Ratio in Gecko Diets

Crested geckos should eat a diet that has a Ca:P ratio of 2:1, 1:1, or 1:0.5. The ratio you decide to feed your gecko can affect their growth, metabolism, and health.

If the gecko consumes calcium above what it needs, it is excreted in its urine. If they consume too much phosphorus, they store it in their bones and teeth, which can lead to problems like kidney stones and metabolic bone disease.

How To Calculate Ca:P Ratio

You can figure this out by calculating the Ca:P ratio using the formula given below. 

According to the nutritional content, the Ca:P ratio is 30.7mg:35.7mg. Dividing through by 30.7 (calcium). The ratio becomes 1:1.2.

How Does Oxalic Acid Affect Your Pet?

Oxalic acid is not a nutrient or essential dietary component and it is not required for normal growth or health.

When oxalic acid is consumed, it binds to the calcium and magnesium in the body and prevents them from being absorbed.

This can lead to calcium deficiency which can be harmful to your pet.

Crested geckos are strict insectivores and may not benefit from the oxalic acid in the food and may not be able to digest it.

Some people recommend soaking and rinsing the fruits to get rid of the oxalic acid. However, this is not proven to be effective.

Oxalic Acid Levels In Raspberries

Raspberries are considered foods with high levels of oxalic acid. Raspberries contain 48mg of oxalates per cup. Thus, they shouldn’t be fed to crested geckos due to their high amount. 

Oxalic acid level is high in raspberries

Alternatives To Raspberries

Fortunately, there are so many alternatives to raspberries. Here are 5 of them:


Blueberries are rich in antioxidants and help boost your crested gecko’s immune system. They contain low levels of oxalic acid and so they can be fed to your gecko.

blue berries

Dubia roaches

One of the most common feeder insects around. Dubia roaches are a staple insect diet for crested geckos.

Rich in protein and fats and easy to obtain. They don’t contain pathogens or parasites that can harm your crested geckos. Furthermore, they are great to feed for babies and juvenile crested geckos.

Gut loading and dusting are recommended before feeding them to your gecko.


Kiwi is actually a great source of vitamins and minerals, including vitamin A, vitamin C, and fiber. It has low levels of oxalic acid and calcium to phosphorus ratio of 1:1. 


Phoenix worms

Phoenix worms are rich in calcium and are the best larvae for preventing metabolic bone disease in your gecko. The large calcium content also helps in healthy bone growth.

Aside from that, they are rich in protein and fats. Phoenix worms are the best for crested geckos regardless of whether it’s an adult, juvenile, or hatchling. 

Phoenix Worms
Phoenix worms


Strawberries contain a good amount of calcium and vitamin C. They are also rich in vitamin E which helps in the digestion of food. 



The high oxalic acid levels make raspberries unsuitable to be fed to your crested gecko. Your gecko will be put at risk of developing metabolic bone disease because it won’t be able to absorb calcium.

Fortunately, there are so many alternatives to raspberries. 

The Pet Engineers

A team of pet lovers. We have owned various pets over their years. From dogs to reptiles, etc. Our love of pets, strive to us to create up-to-date and accurate helpful guides on pets.

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