Vitamin D deficiency can lead to a loss of bone density, which can contribute to osteoporosis and fractures (broken bones). Severe vitamin D deficiency can also lead to other diseases: In children, it can cause rickets. Rickets is a rare disease that causes the bones to become soft and bend.
FALLING SICK OFTEN
When your body runs low on vitamin D, it affects your immunity, making you more prone to ailments like cold and flu, fever, allergies, asthma, and eczema. These are just a few among more than 80 illnesses that can be caused by problems with the immune function.
If you have a vitamin D deficiency, you may notice improvements within 4-6 weeks of consistent supplementation. However, that timeframe can vary depending on what your baseline vitamin D levels are.
Symptoms when vitamin D is low
Fatigue. Not sleeping well. Bone pain or achiness. Depression or feelings of sadness.
Having inadequate levels of vitamin D may correlate with unintentional weight gain. A study on women over the age of 65 found that participants with a lower vitamin D level experienced more weight gain. A systematic review of 23 different studies found similar associations between vitamin D deficiency and obesity.
Vitamin D deficiencies can also result in bone diseases such as rickets in children and osteomalacia and osteoporosis in adults. But you may not be aware that if you're not getting enough vitamin D, you may also suffer from dizziness, headaches, and yes, low energy and fatigue.
There's no set time of day that's best to take vitamin D supplements. Some people say taking vitamin D supplements at night is an insomnia risk. There's no research to confirm this, but you might want to take your supplement earlier in the day if you think it's screwing with your sleep.
Therefore, conditions that affect the gut and digestion, like celiac disease, chronic pancreatitis, Crohn's disease, and cystic fibrosis, can reduce vitamin D absorption.
Growing evidence has demonstrated that vitamin D has a role in sleep regulation [12]. Specifically, vitamin D deficiency (VDD) can increase risk of sleep disorders and is associated with sleep difficulties, shorter sleep duration, and nocturnal awakenings in children and adults [13,14,15].
"Adequate levels of magnesium in the body are essential for the absorption and metabolism not only of vitamin D but of calcium as well," Dean states. "Magnesium converts vitamin D into its active form so that it can help calcium absorption.
To an extent, vitamin D does play a role in reducing fatigue and boosting energy levels. This is because it aids the function of the mitochondria within the body's cells, which is responsible for creating energy.
Possible culprit: A vitamin or mineral deficiency
One possible reason for feeling tired, anxious, and weak is having low levels of iron, vitamin D, or B12. Many experts believe that a significant percentage of the U.S. population is deficient in vitamin D.
Vitamin B12 and other B Vitamins
Vitamin B12 deficiency is particularly common and can result in fatigue, weakness, and low energy. B12 is essential for red blood cell production, and so low B12 levels can also lead to anemia.
Many studies show that overweight and obese people have low vitamin D levels when compared to their slimmer counterparts. And some studies link increased belly fat to vitamin D deficiency. In fact, according to a Medical News Today article, an increase in overall body fat and low vitamin D seem to go hand in hand.
Besides boosting mood and promoting calcium absorption, recent studies have shown that vitamin D may also aid in weight loss. For people with extra belly fat, a vitamin D supplement may be beneficial.
Vitamin D insufficiency may relate to higher levels of anxiety and depression, in turn contributing to the elevated risk of psychosis in this population.
Use the CVS Health At Home Vitamin D Test Kit to get accurate and comprehensive results in the privacy and comfort of your own home. Simply collect your blood sample using this convenient kit, mail it to the lab, and receive your results through a secure online portal in just a few days.
Magnesium assists in the activation of vitamin D, which helps regulate calcium and phosphate homeostasis to influence the growth and maintenance of bones. All of the enzymes that metabolize vitamin D seem to require magnesium, which acts as a cofactor in the enzymatic reactions in the liver and kidneys.
Vitamin D and sleep: The surprising connection
Early research suggests it is inversely related to melatonin, your sleep hormone. Increasing vitamin D levels may suppress melatonin levels. So, it makes sense that taking it at night could disrupt your sleep.
Vitamin D stimulates hair follicles to grow, and so when the body does not have enough, the hair may be affected. A vitamin D deficiency may also be linked to alopecia areata, an autoimmune condition that causes patchy hair loss.
It can take anywhere from 1-6 months to raise vitamin D levels with supplements. How much your levels increase and how long it takes will depend on the dose and your baseline vitamin D levels.