10 symptoms of excess Vitamin D in body, how to avoid toxicity

By Namita S Kalla | September 10, 2025 | Image: Canva

Vitamin D toxicity

Image: Canva

High vitamin D levels above 375  can cause serious symptoms like  nausea, confusion, and muscle  weakness in adults

Watch out for supplements

Image: Canva

Most vitamin D overdoses happen due to excessive supplement intake, not from sunlight or food sources

Daily upper limits

Image: Canva

Adults should not exceed 100 mcg  (4,000 IU) daily from all sources to  avoid toxicity and health risks

Spot warning signs

Image: Canva

Symptoms such as loss of appetite, dehydration, excessive thirst,  and frequent urination may  indicate vitamin D overdose

Understand kidney risks

Image: Canva

If vitamin D levels are extremely  high, they can lead to kidney stones  and can cause kidney failure if  not managed immediately

Avoid self-medicating doses

Image: Canva

Never take high-dose  vitamin D supplements without  medical advice, even if you feel  you need more for deficiency

Check with your doctor

Image: Canva

Doctors can recommend safe, monitored doses above upper limits temporarily if you have a vitamin D deficiency

Sunlight won’t overdose

Image: Canva

Your skin naturally regulates vitamin D production, so you cannot get harmful levels from sun exposure alone

Caution during pregnancy

Image: Canva

Pregnant and breastfeeding,  women should stick to the safe  upper limit of 100mcg daily,  unless prescribed otherwise

Keep children safe

Image: Canva

Children have lower upper limits based on age. Excessive vitamin D, can cause serious harm, even in young ones

Next: Hangovers, cravings, and liver health? How Kudzu can help
Thanks For Reading !
Find out More