ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

The Health Benefits of Manuka Honey

Increase Your Magnesium Intake

Vitamin D supplementation could ease IBS symptoms

Top Tips to Boost Your Immunity

11 Amazing Health Benefits of Using Baking Soda

Nicotinamide riboside shows promise for treatment of Alzheimer’s disease

Exercise, calcium, vitamin D, and other factors linked with fewer injurious falls

Vitamin D3 Is a Powerhouse for Your Heart

Rhodiola — A Powerful Adaptogen That Boosts Vitality and Performance, Eases Depression and Combats B...

Curcumin Supplementation May Impart Long-Term Cognitive Benefits

 
Print Page
Email Article

Zinc Is Crucial for Heart Health

  [ 3 votes ]   [ Discuss This Article ]
By Dr. Mercola • www.ProHealth.com • February 12, 2016


Zinc Is Crucial for Heart Health. Image courtesy pixabay
Image courtesy pixabay
Reprinted with the kind permission of Dr. Mercola.

By Dr. Mercola
 
Zinc, an essential trace mineral, is perhaps most widely known for its role in immune system health, as a zinc deficiency is associated with increased colds and flu. However, zinc is the most common mineral in your body aside from iron; it's actually found in every cell.1
 
You might not be aware that zinc also has potent antioxidant properties, helping to neutralize free radicals that may accelerate aging and contribute to the development of chronic diseases like cancer and heart disease.
 
New research shows, however, that zinc may boost heart health in another way as well, antioxidant properties aside.

Zinc May Help Regulate Your Heartbeat


Researchers from the University of Leicester uncovered that zinc plays a key role in regulating the way calcium moves in your heart cells.Normally, calcium is released through "gates" known as type-2 ryanodine receptors (RyR2).
 
Proper control of these gates is important, since excessive calcium release may lead to heart failure and fatal arrhythmias (irregular heartbeat).3
 
The researchers studied individual heart cells and found zinc directly interacts with and modulates RyR2 function, thereby playing an important role in your body's release of intracellular calcium stores.
Samantha Pitt, a Royal Society of Edinburgh Biomedical Fellow at the University's School of Medicine, told Medical Xpress:4
 
"Our discovery provides a mechanistic explanation of how zinc plays a key role in regulating heart muscle contractility and how imbalances in zinc may contribute to diseases such as heart failure and fatal arrhythmias.
 
… The ability of zinc to modulate RyR2 channels in the absence of calcium represents a paradigm shift in our understanding of how RyR2 is activated when heart muscle contracts.
 
Although just a first step, this kind of basic science research underpins our understanding of the pathophysiology of disease."
 
Past research has shown patients with congestive heart failure often have profound zinc deficiency,5 which adds to the growing support that zinc is crucial for heart health, and underscores the importance of consuming enough of this mineral via your diet.

Richard Rainbow, a lecturer in Cardiovascular Cell Physiology at the University of Leicester, continued in Medical Xpress:6
 
"It always amazes me that seemingly small changes in the concentration of an ion have such profound effects on cardiac cell function that, when in the context of the whole heart, would have severe consequences."

Your Body Contains More Than 300 Zinc-Dependent Enzymes


Zinc is a constituent of at least 3,000 different proteins in your body and a component of more than 300 different enzymes. In fact, zinc is involved in more enzymatic reactions in your body than any other mineral. For this reason, even mild zinc deficiency may impact numerous aspects of your health, including:

Immune Function
 
The function of your immune system may markedly decrease in as few as four weeks after eating a low-zinc diet.7
 
Zinc affects multiple aspects of your immune system, including neutrophils, natural killer cells, phagocytosis, cytokine production, antibody production, and even gene regulation within your lymphocytes (white blood cells).

Research suggests high-dose zinc lozenges may shorten the duration of the common cold.8
 
Vision Health
 
Zinc works with vitamin A to help your eyes sense light and communicate via nerve impulses with your brain.

The Age-Related Eye Disease Study (AREDS1) found a supplement containing zinc (80 milligrams), vitamin C, vitamin E, beta-carotene and copper helped slow down the damage associated with age-related macular degeneration (AMD).9
 
Brain Health
 
Zinc deficiency may play an important role in the development of Alzheimer's disease. The disease is linked to accumulation of clumps of defective proteins in your brain, and zinc, it turns out, may be critical for preventing such accumulation.10,11
 
Sensory Organs
 
Zinc is required to produce an enzyme called carbonic anhydrase (CA) VI, critical to taste and smell, which is why loss of sense of smell or taste is one of the classic signs of chronic zinc deficiency.
 
It's been estimated that 15 percent of elderly people who lose their sense of smell may have a zinc deficiency.12
 
Reproductive Health
 
When men ate a zinc-deficient diet, the health of their sperm suffered in terms of both quantity and quality.13 As noted by the George Mateljan Foundation:14
 
"This study demonstrated that even brief periods of severe zinc deficiency can lead to measureable changes in sperm composition and quantity. Studies correlating diseases known to impair zinc nutrition with reduced fertility seem to second this conclusion."
 
Attention Deficit Hyperactivity Disorder (ADHD) 
 
Research suggests children with ADHD have lower zinc levels than children without the condition.15
 
Among children with low levels of zinc and ADHD, there is some evidence that zinc supplementation may lead to improvements in symptoms such as hyperactivity, impulsivity, and impaired socialization.16

How Much Zinc Do You Need?


It's estimated that about 12 percent of the U.S. population may be at risk of zinc deficiency, and this rises to up to 40 percent among the elderly, who often have less intake and more difficulty absorbing this nutrient from food.17
 
Even under the best circumstances, your body may absorb only 20 percent to 40 percent of the zinc in your food.18 Further, the zinc in animal foods is better absorbed than that from plant foods, and zinc is best absorbed when consumed along with protein.
 
For adults, the RDA for zinc is about 11 milligrams (mg) per day for adult men and 8 mg for women. If you are lactating or pregnant, you need about 3 mg more. For children, 4 to 8 year olds need about 5 mg, and 9 to 13 year olds need 8 mg, while infants need only about 3 mg.
 
In addition to the elderly, people who have certain health conditions may be at increased risk of zinc deficiency:19 
  • Alcoholism

  • Cirrhosis (liver disease)

  • Kidney disease

  • Celiac disease

  • Inflammatory bowel disease (ulcerative colitis and Crohn's disease)

A number of other factors also contribute to the overall problem of zinc deficiency:
  • Years of industrial farming practices, such as monocropping (planting large expanses of land with the same crop year after year) and tilling the soil, have left our soils deficient in natural minerals, like zinc

  • Genetically engineered (GE) foods, as glyphosate, the active ingredient in herbicides like Roundup, is a mineral chelator, which means it binds specific nutrients, especially zinc

  • Certain drugs deplete your body of zinc, such as ACE inhibitors, thiazide diuretics, and acid-reducing drugs like Prilosec and Pepcid

  • Certain diets, such as vegetarian/vegan diets and high-grain diets, are low in bioavailable zinc and high in phytic acids, which impair zinc absorption


What Are the Best Food Sources of Zinc?


As mentioned, animal products are by far the richest in dietary zinc, as you can see in the table below. Oysters tip the scales at up to 182 mg per serving, but grass-fed beef is also a good source, with about 1 mg of zinc per ounce.20
 
Other good sources include poultry, raw cheese (especially Swiss and gouda), wild-caught seafood and shellfish, raw milk kefir and yogurt, beans, sesame seeds and pumpkin seeds. If you're relying on plant sources of zinc, soaking seeds and allowing them to sprout may significantly improve zinc bioavailability.21
 
If you are healthy and you eat a well-balanced diet, you will rarely need supplements to complete your body's zinc needs, and you should strive to get zinc from dietary sources. Taking too much zinc in supplement form can be dangerous, as it can interfere with your body's ability to absorb other minerals, especially copper. If you decide to use a zinc supplement, chelated forms are better absorbed than inorganic forms, or zinc salts.


Food Serving Size Zinc (mg)

Oysters
100 grams  (3.5 ounces) 16 to 182

Liver
100 grams 12

Pumpkin seeds (roasted)
100 grams 10

Roast beef
100 grams 10

Tahini (ground sesame seeds)
100 grams 10

Unsweetened chocolate
100 grams 9.6

Alaska King Crab
100 grams 7.6

Lamb
3 ounces 7.4

Cashews (dry roasted)
100 grams 5.6

Pork Shoulder
100 grams 5.0

Almonds
100 grams 3.5

Cheddar Cheese
100 grams 3.1

Chicken Leg
100 grams 2.9

Chicken Breast
100 grams 1.0

Sources and References

Journal of Biological Chemistry July 10, 2015
 
Medical Xpress July 14, 2015
 
World’s Healthiest Foods, Zinc
 
1, 16, 18, 19 University of Maryland Medical Center, Zinc
 
2 Journal of Biological Chemistry July 10, 2015
 
3, 4, 6 Medical Xpress July 14, 2015
 
5 Biol Trace Elem Res. 2011 Dec;143(3):1239-46.
 
7, 12, 14, 20, 21 World’s Healthiest Foods, Zinc
 
8 Open Respir Med J. 2011;5:51-8.
 
9 Arch Ophthalmol. 2001;119(10):1417-1436.
 
10 University of Wisconsin-Madison Press Release September 30, 2013
 
11 J Biol Chem. 2013 Oct 25;288(43):31313-27.
 
13 Am J Clin Nutr. 1992 Jul;56(1):148-57.
 
15  Zhongguo Dang Dai Er Ke Za Zhi. 2015 Sep;17(9):980-3.
 
17 Oregon State University September 17, 2009

This article was brought to you by Dr. Mercola.
Founder of the world's #1 natural health site, he gives you the low-down on cholesterol. Discover why you actually need Cholesterol in this FREE report.
Dr. Mercola
Dr. Mercola




Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ FibroSleep™ Optimized Curcumin Longvida®


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get Energized with Malic Acid & Magnesium

Natural Remedies

The Big Blue Fish that Helps Chase the Blues Away The Big Blue Fish that Helps Chase the Blues Away
Break Free From Fibromyalgia Break Free From Fibromyalgia
Improve Cardiovascular and Metabolic Health with Omega-7 Improve Cardiovascular and Metabolic Health with Omega-7
Restore Youthful Cognition and Well-Being Restore Youthful Cognition and Well-Being
The Cellular Enzyme That Promotes Longevity And Reduces Fat Storage The Cellular Enzyme That Promotes Longevity And Reduces Fat Storage

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2018 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map