It's often beneficial to take magnesium at night for relaxation and sleep, while vitamin D, a fat-soluble vitamin, should be taken with a meal containing fat, making breakfast or lunch a better time, though morning vitamin D can boost mood and energy; taking them together is great for absorption, but separate times may optimize benefits, with consistency being key for both.
Vitamin D before bed can help you sleep. Magnesium will not work if you're very low in vitamin D and vice versa. If you're new to fasting and you go to bed hungry, it can interfere with your sleep. If fasting triggered your sleep problem, scale back, and begin fasting more gradually over time.
Yes! Taking Vitamin D and Magnesium together can help support a healthy immune system. Vitamin D aids Magnesium absorption, and Magnesium helps Vitamin D work better.
You can take them together at any time of day, including at night, ideally with food for better absorption. Magnesium and vitamin D work in synergy. If your magnesium levels are low, your body may not get the full benefit from vitamin D, even if your blood levels look normal.
Magnesium can also reduce feelings of stress, which can drain energy reserves. Best Time to Take: Morning or early afternoon. Taking magnesium in the morning with breakfast or in the early afternoon helps you take advantage of its energizing effects.
Magnesium and Zinc
Researchers have found that high doses of zinc supplements can decrease magnesium absorption and affect magnesium balance in the body, regardless of calcium intake.
Magnesium probably can't make you tired the next day or during the day unless side effects from the supplement — like diarrhea and nausea — have disturbed your sleep last night. Taking too much magnesium in supplement form can cause lethargy, however, so it's important to stick within safe limits.
Vitamin D in the evening
Some may prefer to take it in the evening, but research is mixed on its effectiveness. A 2021 review found that taking vitamin D in the evening may result in a lower production of melatonin (a hormone that helps you fall asleep and regulates your sleep-wake cycle).
Health Risks from Excessive Magnesium
Although the risk of acquiring too much magnesium from food is low among healthy people, high doses of magnesium from dietary supplements or medications can cause diarrhea, nausea, and abdominal cramping.
Magnesium typically promotes mild relaxation within hours but requires one to two weeks of consistent daily use for noticeable sleep improvements. Clinical studies often track benefits over six to eight weeks for the full effect.
Your body needs magnesium to function normally. Symptoms of magnesium deficiency include low appetite, nausea or vomiting, muscle spasms or tremors and abnormal heart rhythms. A blood test or urine test can be used to diagnose magnesium deficiency.
Both supplements have some research to support their effectiveness in managing anxiety, and other research suggests they work better together. Talk with your healthcare provider if you are interested in taking magnesium or vitamin D for anxiety. They can help you decide if the supplements are a safe option for you.
Vitamin D deficiency often has subtle or no symptoms but can cause fatigue, bone pain, muscle weakness/cramps, mood changes (depression), slow wound healing, frequent illness, and hair loss; in children, severe deficiency leads to rickets (bowed bones), while in adults, it increases risks for osteoporosis and fractures.
For many people, it's important to take vitamin D and magnesium together. Without magnesium, your body can't use vitamin D. And if you take vitamin D supplements, this can make a magnesium deficiency worse. There are natural ways to increase both your vitamin D and magnesium levels.
It turns out that magnesium can bind to and either activate or dampen important neurological receptors in our body which have a role to play in sleep. Fluctuating levels of magnesium in the body can also impact how much hormones we produce, like melatonin (the sleep hormone) and cortisol (the stress hormone).
Vitamin D
To get the most from your supplement, consider spacing it at least an hour away from your coffee, Ngo suggests. And since vitamin D is fat-soluble, taking it with a meal that includes healthy fats can help improve absorption.
Nassar notes that most adults don't need to be too worried about their magnesium levels. "For the average person who maintains a well-balanced diet, it's rare to be deficient in magnesium," Dr. Nassar says. That's because it's naturally found in many foods.
If you're not sure where to begin, magnesium glycinate is an excellent place to start for sleep and anxiety. For sharper thinking or brain-based anxiety, try magnesium L-threonate. And for calming both your mind and body, magnesium taurate offers a gentle, heart-centered approach.
When taken in doses greater than 350 mg daily, magnesium is possibly unsafe. Large doses might cause too much magnesium to build up in the body, causing serious side effects including an irregular heartbeat, low blood pressure, confusion, slowed breathing, coma, and death.
Certain recommendations indicate that taking vitamin D in the evening could negatively affect sleep quality due to its potential interference with melatonin production. However, scientific research to determine whether taking vitamin D in the evening can affect sleep is still lacking clear evidence.
Supplementing vitamin B6 may improve sleep quality and duration. A 2019 study also found that taking a supplement of magnesium, melatonin, and vitamin B complex for 3 months improved sleep and helped treat insomnia.
6 Supplements You Shouldn't Take At Night
The side effects of magnesium include nausea, diarrhea, stomach pain, arrhythmias, dyspnea, hypotension,... To minimize the risk of side effects and drug interactions, magnesium supplements should only be taken as prescribed by a doctor.
1. Magnesium glycinate: Best absorbed form, bonded to glycine amino acids, gentle on the stomach, ideal for muscle cramps and sleep support, and considered the safest form with the least side effects.
Taking it 1–2 hours before bedtime can help relax muscles and prepare your body for restful sleep. Magnesium glycinate and citrate are commonly taken for this purpose.