T45: Poisoning by primarily systemic and haematological agents, not elsewhere classified

T45.2: Poisoning: Vitamins, not elsewhere classified

Vitamins are substances the body needs for many tasks. The body is unable produce most vitamins by itself. These vitamins must be taken in through food.

Some vitamins can cause poisoning if too much of it is taken. These vitamins include, for example, vitamin A and vitamin D. If someone has certain pre-existing conditions, accidentally taking vitamins at the normal dosage can also cause poisoning.

For example, vitamin A or vitamin D poisoning can lead to nausea and vomiting. The person may also feel dizzy or confused. Vitamin D poisoning can also affect the function of the kidneys and other organs.