Cognitive Symptoms
Cognitive symptoms associated with an excess of vitamin D can manifest in various ways. A gradual increase in blood calcium levels may lead to apathy, fatigue, depression, and forgetfulness. However, an acute overdose of vitamin D can cause rapid cognitive impairment.
Neurological symptoms are also commonly observed in cases of vitamin D overdose. These symptoms include uncontrollable movements, slurred speech, difficulty swallowing, loss of balance, an unsteady gait, slow movement, tremors, and involuntary muscle tensing known as dystonia. It is important to note that severe cases of vitamin D overdose can even result in coma and death, underscoring the vital need for immediate medical attention.
Effects of Vitamin D Toxicity on Peripheral Nerves
Vitamin D toxicity and hypercalcemia can have detrimental effects on the peripheral nervous system, leading to disruptions in nerve signals. This can manifest in various ways, with the most commonly reported symptoms including numbness, tingling, prickling sensations, burning, or an increased sensitivity to temperature. Additionally, individuals may experience sporadic nerve and muscle pain as a result of vitamin D toxicity.
In some cases, vitamin D toxicity may also result in hearing impairment or an altered sense of smell or taste. However, it is important to note that these symptoms are typically temporary in nature.