Can Red-Eared Slider Turtles Eat Cucumbers: Significant Pros and Cons

Yes, red-eared slider turtles eat cucumbers! However, they should not eat it often. While feeding cucumbers to your turtle should only be done occasionally and under the guidance of a veterinarian. This blog provides information on why cucumbers are good for turtles, how to feed them safely, and other healthy fruit and vegetable options that turtles can consume. 

Pros and Cons of Cucumbers for Red-Eared Slider Turtles

Why Cucumbers Are Good for Turtles

Slider turtles are omnivores and are, therefore, able to eat a variety of food items. One of the turtle’s favorite food items is cucumbers, which are high in water. In addition to being a good food choice, cucumbers make a great basking spot for slider turtles – giving them warmth and shelter simultaneously.

Different types of cucumbers will taste different to slider turtles, so be sure to find one that the turtle loves! Finally, cucumbers are a low-sugar food, so slider turtles don’t get the sugar highs and lows that can be harmful.

Why Turtles Should Not Eat Cucumbers Daily

Slider turtles are beautiful creatures that can add a touch of elegance to any environment – but feeding them cucumbers daily is not a good idea. Cucumbers are high in toxins that can potentially harm your slider turtle. If you must give them cucumbers, ensure they’re cooked first to reduce the risk of toxins. 

Cautions to Take When Feeding Cucumbers to Your Turtle

As a reptile lover, feeding your turtle cucumbers is a natural thing to do. However, there are a few things to keep in mind before you start. 

  • Make sure the cucumbers you feed your turtle are safe for reptiles. Some may contain harmful chemicals that could harm your turtle. 
  • Be aware that red-eared slider turtles are omnivores and will eat just about anything. 
  • Please provide them with various fresh and healthy foods, so they don’t get bored or sick. Finally, be prepared to clean up any cucumber messes – they love them!

Vegetables That Are Safe for Red-Eared Sliders


Carrots are a safe vegetable for slider turtles to eat, as they are low in sugar and contain few carbs. 


Lettuce is a great vegetable to eat for red-eared slider cages because it contains very few sugar and health benefits that are beneficial for the animal. Sliders will happily chow down on lettuce leaves, so feel free to feed them as much lettuce as they want! Lettuce also has nutrients that help keep your slider healthy and hydrated making it an ideal food option.

Green Beans

Green beans are a type of vegetable that slider turtles can eat. They are high in water content, which suits the turtles’ digestive system. Do not overfeed your slider turtles with green beans, as they may become overweight and unhealthy.

Bell Pepper

Feeding your red-eared slider turtles fresh vegetables is the best way to ensure their health and well-being. Bell peppers are a safe vegetable for these reptiles to consume, as they have a low toxicity level and contain plenty of nutrients that can be beneficial to them. Bell peppers can provide your slider turtle up to half a bell pepper in one sitting!

Vegetables That Are NOT Safe For Red-Eared Sliders


Regarding vegetables for red-eared slider feeding, chard should not be on the list. While chard is a healthy green veggie in and of itself, its high levels of oxalates can be harmful to sliders’ digestive systems. Other leafy greens like lettuce, spinach, and kale are safer options as they are low in oxalates and won’t harm your turtle’s health. Along with leafy greens, other safe vegetable choices for red-eared sliders include tomatoes, corn, peas, beans, and potatoes. 

Remember that these veggies should only make up a small percentage of their diet – approximately 15% max – as overfeeding them will lead to obesity issues and other health problems down the line.


Spinach is a leafy green vegetable that red-eared sliders can consume. However, it would help if you took some precautions before feeding these turtles spinach. First, the leaves and stems of spinach contain oxalates which could harm red-eared slider health. 

In addition, other vegetables that red-eared sliders should not consume include tomatoes, eggplant, beans, and peas. Cucumbers are also unsafe for them as they contain a toxin called cucurbitacin.


Cabbage is a vegetable that many people consider to be poisonous for red-eared slider turtles. However, this isn’t always the case. If you want to feed your turtle cucumbers made from cabbage, ensure they are cooked first – even if they don’t usually eat vegetables. 

Other than cucumbers, other vegetables that these reptiles should not consume include beans and peas (which can cause gas) and apples (which can cause intestinal blockages).


If you’re feeding your turtles avocado, you must be aware of the potential consequences. Other harmful vegetables for red-eared slider consumption include grapes, apples, and pears. Additionally, you should not feed avocados to sliders as they can contain a compound that could make them sick. 

A healthy diet for red-eared sliders includes plenty of different vegetables, so feeding them avocados shouldn’t pose much of a problem!


Rhubarb is a vegetable most slider owners should avoid feeding their red-eared sliders as it can cause harmful effects on their kidneys. Other vegetables on the safe list for slider owners include celery, onions, garlic, and green beans. If you choose to give your slider cucumbers, ensure they are diced into small pieces and fed in moderation only.