Can rats have watermelon?

In this article, we will answer the question “Can rats have watermelon?”, and what other fruits are safe or unsafe to eat for rats?

Can rats have watermelon?

Yes, rats can have watermelon but in moderate amounts. Rats love watermelon so it’s important for you to consider portion control because too much sugar is dangerous for rats. 

The seeds of any fruit including watermelon present a choking hazard to rats. Besides, they may also contain poisonous chemicals. 

There haven’t been many warnings about the toxic nature of the watermelon seeds but It is best to be on the safe side and avoid it altogether. Watermelon rind, unlike other fruits, is safe to eat for rats but in moderation.

What other fruits are safe for rats to eat?

Fruits like apple, apricot, avocado, bananas, berries, cherries, grapes, kiwi, pears, pomegranates, plums, peaches, raspberries, green bananas, melons, watermelon, etc can be safely fed to rats.

Dangerous Fruits for rats 

Apple flesh is good for rats but apple seeds have cyanide in minute quantities. It can be poisonous If a large number of seeds are ingested. 

The peel or rind of avocado is toxic for rats. But the avocado flesh can be fed to rats in limited amounts. 

Green bananas inhibit the functioning of enzymes responsible for scratch digestion in rats. The d-limonene present in mango is responsible for causing kidney cancer in male rats. 

The white pith and the orange peel of oranges are toxic for rats. It is best to avoid this fruit altogether just to be on the safe side. Besides, orange juice has the same toxic compound as mango i.e d-limonene.

What vegetables are safe for rats?

Vegetables like Broccoli, butternut squash, cantaloupe, celery, cucumber, green beans, green peppers, lettuce, papaya, peas, cooked mushrooms, potatoes, pumpkin, red peppers, squash, sweet potatoes(cooked), mashed potatoes, Choy, parsley, etc are safe to eat for rats. Make sure the pepper is not too hot before feeding it to your rat.

Can rats eat meat and poultry?

Rats can safely consume meat and poultry products like cold cuts, ham, hard-boiled eggs, scrambled eggs, turkey, etc.

What types of cheese can rats safely consume?

Cheese in limited amounts, especially soy-based cheese, is healthy for rats. Besides, rats can safely eat cottage cheese, cream cheese on crackers, etc. 

Dangerous Vegetables for rats 

  • Raw artichoke blocks the digestion of protein in rats. 
  • Beet tops, spinach, and rhubarb contain significantly high levels of oxalates that may accumulate in the kidneys leading to urinary tract blockages, and stones in the bladder and kidney. 
  • Raw brussels sprouts and raw red cabbage is damaging to thiamine  (B1 vitamin). 
  • Green potato skins and eyes contain a toxic compound called solanine which can be poisonous for rats. 
  • Raw onions lead to stomach issues in rats. They may also trigger anemia. Raw sweet potato results in the formation of cyanide in a rat’s stomach. 

Other FAQs about Watermelon which you may be interested in.

How do you pick a good watermelon at the supermarket?

Can bunnies have watermelon?

What type of seed and grain and grain products can rats safely consume?

Dry cereal like cheerios is great for rats. Avoid feeding any cereal like Rice Krispies to your rat because they have high sugar content. 

Rats can safely eat oatmeal, oatmeal cookies, walnuts, popcorn, sunflower seeds, wholegrain/saltine crackers, whole wheat pasta/bread, nuts (roasted and unsalted), etc. 

Soak the bread in milk or water to prevent it from choking your pet rat. Pasta is preferred to be fed to rats in dry form because of its crisp texture. 

What other foods are dangerous for rats?

Uncooked beans inhibit the function of Vitamin A and starch and protein-digesting enzymes in rats. Raw peanuts have the same effect.

The mold that undergoes the fermentation process to make blue cheese is toxic for rats. Caffeinated drinks and those with high levels of added sugar are bad for rat’s health. Rats have difficulty digesting too many sugars. The same science applies to candies being inappropriate for rats. 

Milk chocolate that has a high sugar and fat content is injurious to rat’s health. The fungal contaminants in dried corn can cause liver cancer in rats. Hamster food has a significantly high-fat content. This renders it unsuitable for rats. 

Licorice has been linked to causing neurological poisoning in rats. Just like humans, rats can become ill by consuming moldy food. 

Poppy seeds can make your rat ill. The illness can even be fatal. Sweet feed (used to feed horses) has high levels of corn and molasses which is unhealthy for rats.

The bacteria present in bulk tofu is dangerous for rats. Cooked insects are good for rats but wild insects are a big no as they can transfer diseases and parasites. 

Thick and sticky foods like peanut butter and jelly are choking hazards for rats. They should be fed in small amounts and that too after diluting them with some water. 


In this article, we answered the question “Can rats have watermelon?”, and what other fruits are safe or unsafe to eat for rats?