Vitamin D Deficiency Symptoms – How does low vitamin D affect your heart?
Lisa Nelson RD #9: Vitamin D Deficiency Symptoms – Is there a connection between vitamin D and heart disease? What level vitamin D should individuals maintain to prevent heart problems?
Dr. Shelby-Lane: It is a known and documented fact that too little Vitamin D puts the heart at risk. Yet many patients are not routinely tested, and if so, they do not take the proper steps to reach optimal Vitamin D levels between 50 to 100 ng/dL. Most lab tests give 30 as a low normal, yet this is not optimal. This can by done by diet, sun exposure (in most cases) or adequate supplementation. But most of all, people are not tested. Research suggests Vitamin D deficiency may be an unrecognized heart disease risk factor.
Researchers say a growing body of evidence suggests that vitamin D deficiency increases the risk of heart disease and is linked to other, well-known heart disease risk factors such as high blood pressure, obesity, and diabetes.
For example, several large studies have shown that people with low vitamin D levels were twice as likely to have a heart attack, stroke, or other heart-related event during follow-up, compared with those with higher vitamin D levels.
“Vitamin D deficiency is an unrecognized, emerging cardiovascular risk factor, which should be screened for and treated,” says researcher James H. O’Keefe, MD, director of preventive cardiology at the Mid America Heart Institute in Kansas City, Mo., in a news release. “Vitamin D is easy to assess and supplementation is simple, safe and inexpensive.”
Most of the body’s vitamin D requirements are met by the skin in response to sun exposure. Other less potent sources of vitamin D include foods such as salmon, sardines, cod liver oil, and vitamin D-fortified foods like milk and some cereals. Vitamin D can also be obtained through supplements.
Vitamin D deficiency is on the rise. Vitamin D deficiency symptoms are traditionally associated with bone and muscle weakness, but in recent years a number of studies have shown that low levels of the vitamin may predispose the body to high blood pressure, congestive heart failure, and chronic blood vessel inflammation (associated with hardening of the arteries). It also alters hormone levels to increase insulin resistance, which raises the risk of diabetes.
In a review article published in the Journal of the American College of Cardiology, researchers surveyed recent studies on the link between vitamin D deficiency and heart disease to come up with practical advice on screening and treatment.
They concluded that vitamin D deficiency is much more common than previously thought, affecting up to half of adults and apparently healthy children in the U.S.
Researchers say higher rates of vitamin D deficiency may be due in part to people spending more time indoors and efforts to minimize sun exposure through the use of sunscreens. Sunscreen with a sun protection factor (SPF) of 15 blocks approximately 99% of vitamin D synthesis by the skin.
“We are outside less than we used to be, and older adults and people who are overweight or obese are less efficient at making vitamin D in response to sunlight,” says O’Keefe. “A little bit of sunshine is a good thing, but the use of sunscreen to guard against skin cancer is important if you plan to be outside for more than 15 to 30 minutes of intense sunlight exposure.”
Testing for Vitamin D Deficiency
Vitamin D levels can be measured with a blood test for a specific form of vitamin D called 25-hydroxy vitamin D (25(OH)D). Vitamin D deficiency is defined as a blood 25(OH)D level below 20 ng/dL. Normal levels are considered to be above 30 ng/dL.
Again, criteria for optimal levels is between 50 to 100 ng/dl.
All the best,
Lisa Nelson RD
Heart Healthy Tips
Reduce Heart Disease – Do you know the signs of a CoQ10 deficiency?
Symptoms associated with a CoQ10 deficiency develop gradually over time, so it’s very easy to miss the signs.
Symptoms include: aches and pains, fatigue, sore muscles, weakness, malaise, and shortness of breath
Our bodies are designed for CoQ10 to be formed from a variety of vitamins, minerals, and amino acids. If your intake of vitamin C, B-12, B-6, pantothenic acid, and various other minerals and nutrients is deficient, the production of CoQ10 is compromised. Conditions and medications, such as hyperthyroidism, antidepressants, gum disease, and advanced age will also cause lower than adequate levels of CoQ10.
All the best,
Lisa Nelson RD
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High Blood Pressure and Magnesium
Magnesium is not a mineral that tops discussions very often; however, magnesium is critical to over 300 bodily functions. Magnesium maintains normal muscle and nerve function, helps regulate blood sugar levels, promotes normal blood pressure and heart rhythm, maintains bone strength, and supports a healthy immune system.
Many people consume a diet low in magnesium receiving less than two-thirds of the recommended dietary allowance. Good magnesium sources include whole grains, spinach, broccoli, squash, beans, popcorn, nuts, pork, and seeds. Fair sources of magnesium include dairy products, chocolate, and meats.
A magnesium deficiency takes a long time to develop. Magnesium deficiency symptoms include irregular heartbeat, weakness, fatigue, numbness, muscle pain, disorientation, and seizures. Conditions related to increased risk for magnesium deficiency include alcoholism, poorly controlled diabetes, intestinal disorders (Crohn’s disease), and intake of certain medications (diuretics). Sup-optimal levels of magnesium intake have been linked with diabetes, hypertension, osteoporosis, and pregnancy discomfort.
When someone has type II diabetes they are making adequate insulin levels. The problem with type II diabetes is that the cells do not recognize the insulin. When cells do not recognize insulin they do not let sugar from the blood enter the cell and blood sugar levels remain elevated. This leads to sugar spilling over into the urine, organ damage, and other complications. Magnesium is a factor in this because it’s the “key” that opens the door for insulin to get into the cell. If magnesium levels are low there are no keys to open the door and insulin is unable to do its job resulting in continued high blood sugar levels. When diabetes is poorly controlled the loss of magnesium in the urine is even greater.
Blood levels of potassium, calcium, and magnesium are closely connected and all influence blood pressure. Studies have linked low magnesium levels with elevated blood pressure. As an aside, if you have ever been told to eat a banana by your doctor, you should also increase your magnesium intake. FYI – Bananas are not the best source of potassium – potatoes are!
Magnesium is a major component of the matrix (middle) of bones. Low magnesium levels cause fragile bones that are less flexible and have a slower recovery rate if injured.
Adequate levels of magnesium are related to decreased leg cramps during pregnancy. A magnesium deficiency is also a risk factor for gestational diabetes.
Recommended Dietary Allowances (RDA) for Magnesium:
Men 350 mg per day
Women 280 mg
Pregnancy 300 mg
Lactation 355 mg first 6 months; 340 mg next 6 months
You do NOT want to take megadoses of magnesium – more is not better in this case. You just want enough to meet the RDA. If you feel your intake of magnesium from foods is low, taking a basic multivitamin is a simple way to ensure you meet your needs. Read the multivitamin label carefully because not all multivitamins include magnesium. Always check with your doctor before altering your medications or supplements.
Magnesium may not be an exciting mineral, but it is critical. Ensure you are eating adequate sources of magnesium rich foods and/or consider a supplement to promote optimum health.
February is American Heart Month. In recognition of American Heart Month you can access Heart Health Made Easy at a 25% savings. Learn more about this take action guide to lower cholesterol and blood pressure at http://www.hearthealthmadeeasy.com.
