As cats are mammals, vitamin D is essential for them, too. Vitamin D is essential for keeping your cat’s calcium and phosphorus balanced. Additionally, it improves calcium retention, which aids in bone development and nerve and muscle function.

1. How Much Vitamin D Will Kill A
Cat

2. As cats are mammals, vitamin D is essential for them, too. Vitamin D is essential for
keeping your cat’s calcium and phosphorus balanced. Additionally, it improves calcium
retention, which aids in bone development and nerve and muscle function.
Fortunately, it may be supplied by consuming animal foods containing it. It is classified
as a fat-soluble vitamin, which implies that it may be stored in fatty tissue.
Adult cat food should include a minimum of 280 international units (IU) of vitamin D per
kilogram, according to the Association of American Feed Control Officials (AAFCO). This
figure should not exceed 30,080 IU per kilogram of food.

3. What is Vitamin D Poisoning?
Vitamin D poisoning, or cholecalciferol poisoning, occurs in cats due to liver and kidney
calcium excess. Vitamin D is rapidly absorbed by the body and is immediately deposited
in adipose (fat) tissue upon consumption. The liver converts a sufficient quantity of
vitamin D to calcifediol, processed by the kidneys and dispersed in the blood plasma.
Vitamin D in the optimum quantity assists the body in controlling the neurological
system, muscles, and bone production, as the organs govern a healthy balance of
phosphorus and calcium.

4. However, excessive vitamin D absorption results in excessive phosphorus and calcium
production (hyperphosphatemia and hypercalcemia), resulting in renal failure and
cardiac problems.
Vitamins and minerals are necessary for your cat’s bodily systems to work correctly, but
an excess of these vital nutrients might have negative consequences. Vitamin D
poisoning in cats happens when your cat consumes an excessive amount of vitamin D,
resulting in a deadly overdose.
Vitamin pills, rat poison, and some plants are rich in cholecalciferol. Which is a form of
vitamin D.

5. Is Vitamin D Okay For Cats?
The “sunshine vitamin” is a naturally occurring vitamin that the body produces. Cats
require vitamin D to operate correctly, which means they do not make enough of it and
must obtain it via their diet.
Vitamin D toxicity manifests itself 12 to 36 hours after consumption. Vitamin D deficiency
can manifest itself in a variety of ways. Small dosages are generally linked with nausea,
diarrhoea, increased drinking and urine, stomach discomfort, depression, and loss of
appetite.

6. Is Vitamin D Toxicity Lethal?
A substance can be poisonous in large concentrations even if there are no indications of
toxicity. Even if there are no apparent symptoms, it can become toxic from excessive
vitamin D.
Vitamin D poisoning is unlikely to occur, and symptoms may not manifest for months or
even years. While cholecalciferol is a “vitamin,” it may be highly hazardous if mistakenly
consumed by dogs and cats.
Consumption results in excess calcium being absorbed from the gastrointestinal system,
bone, and kidneys.

7. What are the signs of Vitamin D poisoning?
Vitamin D poisoning in cats, whether via pesticide ingestion, supplement overdose, or
accidental absorption, results in a dramatic rise in the feline’s calcium levels. This can
result in mineralisation (hardening) of the lungs, stomach wall, kidneys, and blood
vessels. This abnormally high calcium level is called hypercalcemia.
Vitamin D poisoning symptoms do not develop immediately and may take up to several
hours to manifest, as vitamin D causes a gradual increase in the animal’s blood calcium
levels. The early indicators of vitamin D deficiency might be imprecise and easily
overlooked.

8. Once the excessive calcium levels have resulted in mineralisation throughout the body,
the feline will experience renal failure, cardiac difficulties, and internal bleeding. Vitamin
D toxicity in cats often manifests clinically between 18 and 36 hours after consumption.
Initially, animals may have vomiting, diarrhoea, and increased thirst. As the calcium level
in the blood increases, more significant symptoms such as muscular spasms and
fits/convulsions occur.
It is important to know how much vitamin D will kill a cat before you give your pet any
supplements or foods with this vitamin in it.

9. Initial symptoms of vitamin D poisoning in cats include:
● Polydipsia (excessive thirst)
● Polyuria (excessive urination)
● Anorexia (refusal to eat)
● Depression
The body’s reaction to the excess vitamin D causes the cat’s blood calcium and
phosphorus levels to increase within 12 to 24 hours of consumption. Calcium is
accumulated in tissues, causing renal failure, discomfort, bloody vomiting,

10. What happens?
Small dosages are generally interconnected with nausea, diarrhea, increased drinking
and urine, stomach discomfort, depression, and loss of appetite.
When too much vitamin D is absorbed, it is referred to as ‘hypervitaminosis D.’ It can
have several adverse consequences related to an elevated calcium level in the blood
due to bone resorption and increased calcium absorption in the intestines.
Soft tissue calcification, cellular degradation, and inflammation are detrimental effects.
The most prevalent cause of death in cats and dogs with hypervitaminosis D is chronic
renal failure.

11. Hypervitaminosis D affects explicitly the following:
● Kidneys
● Lungs
● Bones & Joints
● Pancreas
● Heart & Arteries
A more significant dose may increase calcium and phosphorus levels in the body,
eventually ending in renal failure.