You should not use cholecalciferol if you have had an allergic reaction to vitamin D, or if you have: high levels of vitamin D in your body (hypervitaminosis D); high levels of calcium in your blood (hypercalcemia); or. any condition that makes it hard for your body to absorb nutrients from food (malabsorption). Read more
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.
Stop taking Vitamin D3 and call your doctor at once if you have: chest pain, feeling short of breath; growth problems (in a child taking cholecalciferol); or. early signs of vitamin D overdose--weakness, metallic taste in your mouth, weight loss, muscle or bone pain, constipation, nausea, and vomiting.
Critical vitamin D3-drug interactions
Several commonly prescribed medications have a negative impact on vitamin D status. Medications most likely to affect the status or actions of vitamin D3 include those used to manage hyperlipidemia, arthritis, diabetes, depression, asthma, and COPD5.
Adults older than 70 should be getting at least 800 IU of vitamin D. However, some sources say you should consume up to 1000 IU of vitamin D past the age of 70. If you are older than 65, you should get a blood test and speak with your doctor to tailor a treatment plan to your body.
The Institute of Medicine has placed the recommended dietary allowance, or RDA, for vitamin D at 600 international units (IU) per day for young adults and 800 IU per day for adults older than 70.
Vitamin D Recommendations
According to the report, children older than 1 years old and adults up to 70 years of age are recommended to consume 600 IU of vitamin D daily and adults greater than 70 years of age are recommended to consume 800 IU of vitamin D daily .
No interactions were found between lisinopril and Vitamin D3. This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Conclusion: Oral vitamin D 3has 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.
In other words, patients taking vitamin D supplements had similar changes in blood pressure as those taking an inactive placebo drug. Based on these findings, authors conclude that vitamin D supplements should not be used as treatment for high blood pressure.
Too much vitamin D can cause harmful high calcium levels. Tell your doctor right away if any of these signs of high vitamin D/calcium levels occur: nausea/vomiting, constipation, loss of appetite, increased thirst, increased urination, mental/mood changes, unusual tiredness.
There are two possible forms of vitamin D in the human body: vitamin D2 and vitamin D3. Both D2 and D3 are simply called “vitamin D,” so there's no meaningful difference between vitamin D3 and just vitamin D.
Daily vitamin D was more effective than weekly, and monthly administration was the least effective.
The Vitamin D Council recommends that healthy adults take 2,000 IU of vitamin D daily -- more if they get little or no sun exposure. There's evidence that people with a lot of body fat need more vitamin D than lean people.
Current guidelines say adults shouldn't take more than the equivalent of 100 micrograms a day. But vitamin D is a 'fat-soluble' vitamin, so your body can store it for months and you don't need it every day. That means you could equally safely take a supplement of 20 micrograms a day or 500 micrograms once a month.
Sellers of vitamin D claim the nutrient can lower your blood pressure.
Some signs of heart complications associated with vitamin D toxicity include: an irregular heartbeat, which may be temporary or continual.
Higher vitamin D levels appear to be associated with higher total cholesterol levels and higher HDL cholesterol levels, according to a new study presented at the American College of Cardiology's (ACC) 65th Annual Scientific Sessions.
It's long been known that getting too little of vitamin D weakens bones. But when it comes to heart health, the role vitamin D may play is less clear. Vitamin D deficiency may be linked to heart disease and an increased risk of high blood pressure (hypertension).
One 2012 study found that vitamin D supplements have no cholesterol-lowering effects, at least in the short term. In fact, the researchers found that the supplements were actually associated with an increase in LDL.
To avoid these problems, older adults should aim for the recommended dose of vitamin D for seniors: 600 IU for those under 71 and 800 IU for those 71 and older.
Unless your doctor recommends it, avoid taking more than 4,000 IU per day, which is considered the safe upper limit.
In summary, long-term supplementation with vitamin D3 in doses ranging from 5000 to 50,000 IUs/day appears to be safe.
In patients with vitamin D levels less than 20 ng/mL, start with 50,000 IUs of vitamin D3 once a week for 6 to 8 weeks. After that, a dose of 800 to 2000 IU per day should be taken to maintain vitamin D levels above 30 ng/mL.