Vitamin D and energy: why you might be low and how to fix it
Vitamin D deficiency is one of the most common shortfalls in the body, especially in regions with long winters. Here's how it's linked to energy and what to do.
Vitamin D is involved in dozens of processes in the body, from bone health to immune function. Deficiency is especially common in regions with long winters and few sunny days.
Why the shortfall happens
The main source of vitamin D is synthesis in the skin from sunlight. In winter, with an indoor sedentary lifestyle, and with age, this production drops.
How to address a deficiency
- Spend time outdoors in daylight, even in winter.
- Include fatty fish, egg yolks and fortified foods in your diet.
- If a deficiency is confirmed, discuss supplements and dosage with a doctor.
The link to energy and bones
Vitamin D matters not just for bones but for overall wellbeing — low levels can make fatigue worse. More on bones in "Bone health after 50".
For sugar and energy, see "Sugar and energy". Many people use X39 to support energy throughout the day.
Questions and answers
How do you know if you're low on vitamin D?
A deficiency can only be confirmed with a blood test — fatigue and weakness alone aren't specific and can have other causes.
Can you get all your vitamin D from food?
It's difficult — few ordinary foods contain much of it. Sun exposure and, in some cases, supplements are the main sources, especially in winter.
Who is at risk of vitamin D deficiency?
People living at northern latitudes, those who rarely get sun exposure, and older adults — skin becomes less efficient at synthesizing vitamin D with age.