When taking Vitamin D, avoid combining it with certain medications like statins, orlistat (weight loss drug), thiazide diuretics, anticonvulsants, and digoxin, as it can affect absorption or calcium levels, and separate it from minerals like iron, calcium, and magnesium if taking high doses to prevent absorption interference. It's crucial to consult your doctor or pharmacist about all your medications and supplements before starting Vitamin D to check for potential interactions and determine safe dosages.
Vitamin D supplements can interact with other medications. Examples of vitamin D interactions include atorvastatin (Lipitor), cholestyramine (Prevalite) and phenytoin (Dilantin, Phenytek). Other Vitamin D drug interactions include orlistat (Xenical, Alli), digoxin (Lanoxin), and hydrochlorothiazide (Microzide).
4 Supplements Not to Mix with Vitamin D
7 Foods and Supplements to Avoid Mixing With Vitamin D
The anticonvulsant medicines phenobarbital (Sezaby) and phenytoin (Dilantin, Phenytek) break down more vitamin D. This lessens how well the body can take in calcium. Atorvastatin (Lipitor). Taking vitamin D may affect the way the body uses this cholesterol medicine.
Vitamin D absorption can be prevented by limited sun exposure (dark skin, sunscreen, covering up, indoor lifestyle), medical conditions (celiac, Crohn's, cystic fibrosis, liver/kidney disease, obesity), certain medications (steroids, anti-seizure drugs, weight-loss drugs), and even some nutritional factors like low magnesium, with fat malabsorption issues and obesity being major culprits for preventing both dietary and sun-derived vitamin D from working effectively.
Between late March or early April to the end of September, most people can make all the vitamin D they need through sunlight on their skin and from a balanced diet. You may choose not to take a vitamin D supplement during these months.
The two most common mistakes when taking vitamin D are taking it without adequate fatty foods for absorption, and neglecting to take it with Vitamin K2 and magnesium, which are crucial for directing calcium to bones and activating the vitamin D in your body, respectively, leading to ineffective supplementation or calcium buildup issues. Many also mistakenly choose the less effective D2 form over D3, or take incorrect dosages without blood tests, according to this snippet from Healthshots, this snippet from GrassrootsHealth, this snippet from Yahoo! Health, this snippet from the Cleveland Clinic Journal of Medicine, and this snippet from Verywell Mind.
About 50% of people worldwide have low vitamin D levels. And between 10% and 30% of the population are thought to have low levels of magnesium. For many people, it's important to take vitamin D and magnesium together. Without magnesium, your body can't use vitamin D.
Taking vitamin D and statins together can impact cholesterol production and enzyme competition. High doses of vitamin D and digoxin increase the risk of abnormal heart rhythms. Supplements like calcium and magnesium may interact with vitamin D.
What Vitamins Should You Avoid Taking Together?
Individuals with deficient or insufficient circulating vitamin D concentrations (i.e., <30 ng/mL) are more likely to take longer to fall asleep (i.e., longer sleep latency and later sleep timing) and/or exhibit shorter sleep duration (11–16).
Taking too much vitamin D leads to calcium buildup (hypercalcemia), causing physical signs like nausea/vomiting, fatigue/weakness, frequent urination & excessive thirst, constipation, and confusion/disorientation, alongside potential bone pain or kidney stones, often from supplements, not sun exposure.
What Vitamins Should You Not Take At Night? It may not be ideal to take vitamin D, B complex vitamins, and multivitamins at night. Research suggests vitamin D can interfere with the effects of melatonin and interrupt sleep. B complex vitamins may cause a boost in energy and cause sleep disruptions.
Vitamin D and Vitamin K2 function synergistically to regulate calcium metabolism from absorption to placement of the mineral in the bone. Simply put, without K2, Vitamin D can't do its job properly.
Vitamin D is a fat-soluble vitamin, which means it doesn't dissolve in water and is best absorbed into blood when combined with foods rich in fat. For this reason, it is recommended to take vitamin D with meals to enhance absorption.
Vitamin D in the morning
You absorb vitamin D more easily when you take it with a full meal. As breakfast is so often the largest (and most important) meal of the day, the morning is a prime time to take the sunshine vitamin. Plus, vitamin D levels tend to be highest during the day because of our exposure to the sun.
Vitamin D absorption can be prevented by limited sun exposure (dark skin, sunscreen, covering up, indoor lifestyle), medical conditions (celiac, Crohn's, cystic fibrosis, liver/kidney disease, obesity), certain medications (steroids, anti-seizure drugs, weight-loss drugs), and even some nutritional factors like low magnesium, with fat malabsorption issues and obesity being major culprits for preventing both dietary and sun-derived vitamin D from working effectively.
Yes, magnesium and vitamin D can be taken together in the morning or at night. In fact, taking magnesium at night may have a calming effect and support sleep quality. Both nutrients are best absorbed when taken with food.
Too much vitamin D can cause dangerously high calcium levels in the blood, which can lead to symptoms like fatigue, nausea, confusion, and damage to blood vessels. Get your blood levels tested before adding a vitamin D supplement, and follow your healthcare provider's directions.
An apparent vitamin D paradox, characterized by lower serum 25-hydroxyvitamin D (25(OH)D) levels and higher bone mineral density, is present in black population. In contrast, blacks have higher serum 1,25-dihydrox- yvitamin D (1,25(OH)2D) levels. The effect of 1,25(OH)2D on the skeleton is not fully understood.
Absorption occurs by simple passive diffusion and by a mechanism that involves intestinal membrane carrier proteins [4]. The concurrent presence of fat in the gut enhances vitamin D absorption, but some vitamin D is absorbed even without dietary fat.
Symptoms when vitamin D is low
Fatigue. Not sleeping well. Bone pain or achiness. Depression or feelings of sadness.
The hormonal form of vitamin D3, ie, 1α,25-dihydroxyvitamin D3, acts through a nuclear receptor to carry out its many functions, including calcium absorption, phosphate absorption in the intestine, calcium mobilization in bone, and calcium reabsorption in the kidney.
Vitamin D is absorbed better when taken with fatty foods. So, the best time to take vitamin D may be with a meal or snack. Most adults who aren't pregnant don't need to take a vitamin D supplement. But children, people over age 75, and people with certain medical conditions may benefit from vitamin D supplementation.