Important nutrients that can be harmful to cats

Important nutrients that can be harmful to cats

Cats, much like humans need a nutrient rich diet. But there are some essential ingredients and nutrients that can actually do more harm than good for cats if fed in excess amounts. It is very much important to pay extra attention to these ingredients in your cat’s food.


Being carnivores, cats require a higher level of protein than dogs. But cats with renal disease benefit from a diet that contains an easily digestible protein source rather than one that contains excess levels of poor quality protein. Poor quality protein not only causes issues for metabolism and digestibility but may also lead to weight loss, nausea, vomiting, and diarrhea.


As most of the articles have mentioned how important this component is, it is still certainly a nutrient that can cause illness, which can sometimes be severe and life-threatening. When fed in excess amounts, magnesium can have a negative impact on both the nervous system and heart, causing symptoms such as weakness, paralysis, cardiac arrest, respiratory depression, coma, and even death. It can also contribute to formation of bladder stones.


Sodium is commonly said to be important because of the following multiple ways in which it helps.

It helps regulate blood pressure, aids in the transmission of nerve impulses, and is partially responsible for maintaining the balance between acids and bases in the body. On the other hand, excessive sodium can negatively impact the heart, kidneys, and nervous system. This is the reason why cats with heart and kidney disease should have their sodium intake strictly monitored, as excess levels can cause progression of these diseases.

Excessive sodium can also make your cat thirsty, resulting in an increased volume of urine being produced. An excess level of sodium in the diet can even cause your pet to become dehydrated if enough water is not consumed to counter the amount of water being lost as the body tries to flush out the excess sodium.

Calcium and Phosphorus

Calcium and phosphorus are other nutrients that can have an adverse effect if fed in excess to cats. Vets when set a diet for the cats pay utmost importance and focus on the calcium and phosphorous ratio. An abnormally high level of either nutrient may alter the proper ratio and have a negative effect on bones.

An excess of either calcium or phosphorus can lead to a cause of and progression of kidney disease and can also contribute to the formation of bladder stones.

Vitamin D

Feeding abnormally high levels of vitamin D can result in increased calcium levels, causing a number of adverse symptoms in cats involving the kidneys, gastrointestinal tract, nervous system, and cardiovascular system.

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