In conclusion, our study shows that a single dose of oral 100,000 IE vitamin D3 is an effective, well-tolerated, and economical treatment strategy for healthy adults who report fatigue.
Vitamin D keeps your immune system strong and can help regulate insulin levels. It keeps your energy levels up and enhances your mood, too.
Official answer. Generally, it takes a few weeks of taking daily vitamin D supplements for vitamin D levels in the body to rise.
For those between the ages of 1 and 69, the daily recommended intake is 600 international units. For those 70 and older, the daily recommended amount increases to 800 international units daily.
Side effects of vitamin D supplements may include constipation and dry mouth. Extremely high levels of vitamin D are harmful, and can cause nausea, vomiting, confusion, excessive thirst and kidney stones. Vitamin D supplements can interact with certain medications, so check with your doctor before starting one.
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.
Safety and side effects
However, taking too much vitamin D in the form of supplements can be harmful. Children age 9 years and older, adults, and pregnant and breastfeeding women who take more than 4,000 IU a day of vitamin D might experience: Nausea and vomiting. Poor appetite and weight loss.
The two top times to supplement with Vitamin D are in the morning and with a meal, preferably breakfast or lunch. First thing in the morning: There are many benefits to taking Vitamin D in the morning. The biggest benefit is that if you do it first thing, you won't forget about it later.
Vitamin B is recommended as one of the top vitamins to help with tiredness, so you can also opt for a supplement if you're struggling to stay topped up through your diet. Vitamins should be used alongside a balanced diet.
What vitamin provides the most energy? The eight B vitamins (thiamin, riboflavin, niacin, pantothenic acid, B6, biotin, folate and B12) provide the most energy, as they aid in cell metabolism, help the body transform carbohydrates and fats into energy and carry energy-nutrients around the body.
In conclusion, our study shows that a single dose of oral 100,000 IE vitamin D3 is an effective, well-tolerated, and economical treatment strategy for healthy adults who report fatigue.
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].
Vitamin D is non-drowsy, but it won't keep you awake, either.
Vitamin D is as vital for mental health as it's essential for physical health. There is sufficient research to show that not having enough of the vitamin can lead to depression-like symptoms. People with depression have higher chances of having vitamin D deficiency.
In most cases, there's a reason for the fatigue. It might be allergic rhinitis, anemia, depression, fibromyalgia, chronic kidney disease, liver disease, lung disease (COPD), a bacterial or viral infection, or some other health condition.
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.
Can you take vitamin D and magnesium together? Yes. In fact, it's probably best to take both together. Because so many people have low magnesium levels, vitamin D supplements on their own aren't very helpful for a large portion of the population.
There are quite a few differences between vitamin D and vitamin D3, but the main difference between them is that vitamin D is a fat-soluble vitamin that regulates calcium and phosphorous levels in the body, whereas the vitamin D3 is the natural form of vitamin D produced by the body from sunlight.
Is too much vitamin D3 (cholecalciferol) harmful? Yes, having vitamin D levels that are too high in your body can lead to high blood levels of calcium. This can be harmful to your kidneys and cause side effects, such as nausea, constipation, loss of appetite, muscle weakness, and kidney stones.
Two forms of vitamin D are available in supplements: vitamin D3 and vitamin D2. Both can help correct vitamin D deficiency, but most doctors recommend D3 because it is slightly more active and therefore slightly more effective.
Conclusion: Oral vitamin D 3 has no significant effect on blood pressure in people with vitamin D deficiency. It reduces systolic blood pressure in people with vitamin D deficiency that was older than 50 years old or obese.