Frequently Asked Questions About Vitamin D for Seniors
How much Vitamin D do seniors need each day?
The general recommendation from the National Institutes of Health is that adults up to age 70 need 600 International Units (IU) of Vitamin D per day. For adults over age 70, the recommendation increases to 800 IU per day. However, these are general guidelines. If you have a deficiency or certain health conditions, your doctor may recommend a much higher dose, especially for a short period, to bring your levels up.
Can I get all the Vitamin D I need from my diet?
For most people, it is very difficult to get enough Vitamin D from food alone. While eating Vitamin D-rich and fortified foods is a wonderful part of a healthy diet, very few foods are naturally rich in it. This is why a combination of safe sun exposure, diet, and, if recommended by a doctor, supplementation is often the most effective strategy for seniors.
Are there different types of Vitamin D supplements?
Yes, there are two main forms: Vitamin D2 and Vitamin D3. Vitamin D3 (cholecalciferol) is the form your body produces from sunlight and is also found in animal-based foods. Vitamin D2 (ergocalciferol) comes from plant sources. Most studies suggest that Vitamin D3 is more effective at raising and maintaining Vitamin D levels in the blood. Your doctor can recommend the best type and dosage for you.
If I take a calcium supplement, do I still need to worry about Vitamin D?
Absolutely. Think of them as a team that can’t work without each other. You can take all the calcium you want, but without enough Vitamin D, your body can’t absorb it effectively. Vitamin D is the key that unlocks the door, allowing calcium to leave your digestive system and enter your bloodstream where it can be transported to your bones. Taking both is often essential for optimal bone health in seniors.
