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Real members of MyParkinsonsTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
October 23, 2025
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MyParkinsonsTeam

First, it's important to note that vitamin D is measured in IUs (International Units), not mg. People with Parkinson's disease tend to have lower vitamin D levels than the general population, which may be partly due to spending less time outdoors.

The recommended daily vitamin D intake is
• Adults under 70: 600 IUs per Show Full Answer

First, it's important to note that vitamin D is measured in IUs (International Units), not mg. People with Parkinson's disease tend to have lower vitamin D levels than the general population, which may be partly due to spending less time outdoors.

The recommended daily vitamin D intake is:
• Adults under 70: 600 IUs per day
• Adults over 70: 800 IUs per day While vitamin D supplementation can be beneficial, taking too much can cause serious side effects including:
• Nausea and vomiting
• Muscle weakness
• Confusion
• Pain
• Dehydration
• Kidney stones

Since vitamin D can interact with medications, it's crucial to follow your doctor's specific recommendations for your situation. If your doctor has evaluated your blood levels and recommended increasing your dose, this guidance is based on your individual needs.

October 23, 2025

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