Intermittent Claudication: The Nutrient That Offers Much-Needed Relief From Leg Pain

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This debilitating condition results from lack of blood flow to the legs and feet caused by narrowed blood vessels. Sometimes, people with intermittent claudication can walk only a few steps before the pain sets in - and sometimes, they simply can't walk at all.

At HSI, we've written about intermittent claudication (IC) several times. For example, in a previous e-Alert we told you how IC relates to another condition, peripheral artery disease (PAD).

Now we've found a new study that reveals another promising natural therapy for intermittent claudication (IC) and peripheral artery disease (PAD). The research shows this approach can significantly reduce pain and shrink the skin ulcers that often accompany this condition - all without any discernable side effects.

Disease and drugs deprive your heart of vital nutrients
It's an amino acid called L-propionyl carnitine (LPC), which the body uses to turn fat into energy. Under normal conditions, the body can make all the L-propionyl carnitine (LPC) it needs. But some health problems, like diseases of the kidneys, liver, or brain, can reduce carnitine synthesis. Medications, like anti-seizure drugs, can also interfere with natural carnitine production. And research has shown the heart muscle is particularly vulnerable to carnitine deficiency, because of its high-energy requirements.

Carnitine comes in several forms, but L-propionyl carnitine (LPC) is the formulation most often associated with heart health. You may be familiar with the term; in CAM circles, carnitine has been discussed for some time as a potential treatment for angina, congestive heart failure, COPD, and even Alzheimer's disease. Some previous trials had even shown it might help against intermittent claudication (IC) - but this is one of the first studies to show that L-propionyl carnitine (LPC) is significantly more effective than the drugs doctors usually prescribe for treatment.

The whole group was randomly divided between two treatment categories: the first received 1.2 grams of L-propionyl carnitine (LPC) intravenously every day for two weeks, while the other received 1.2 grams of intravenous pentoxifylline each day for two weeks. Pentoxifylline (also known as the brand name Trental) is a drug commonly used to treat intermittent claudication (IC); it changes the shape of red blood cells so that they can fit more easily through narrowed blood vessels.

Carnitine delivers twice as much relief as prescription drug
After two weeks, both groups had seen some positive results. But the results in the L-propionyl carnitine (LPC) group were significantly better. For example, Group A patients in the drug group increased their pain-free walking distance by 30 percent. But Group A patients in the L-propionyl carnitine (LPC) group saw their pain-free walking distance increase 78 percent.

Changes in the mean pain scores were equally dramatic. The prescription drug lowered reported pain measures by 46 percent, but L-propionyl carnitine (LPC) slashed pain as much as 83 percent. And LPC also showed superior effects on patient's skin lesions; the ulcers shrunk 25 percent on pentoxifylline, while L-propionyl carnitine (LPC) reduced the ulcer's size by 48 percent.

Neither of the treatments caused any serious side effects in this study. But side effects of pentoxifylline can include loss of appetite, nausea, constipation, headaches, dizziness, anxiety, and blurred vision. L-propionyl carnitine (LPC) is generally safe, but it should not be taken by people with thyroid problems, as it may interfere with the hormone's action.

In this study, both L-propionyl carnitine (LPC) and pentoxifylline were administered intravenously, in a 1.2 gram dose. But both therapies are also available in oral formulas - pentoxifylline with a doctor's prescription, and L-propionyl carnitine (LPC) from supplement suppliers and health food stores. If you suffer from intermittent claudication (IC), talk to your doctor about your treatment options. Intravenous or oral supplementation with L-propionyl carnitine (LPC) just might lead you to a pain-free and more mobile life.

Heart Disease - Related Reading:

Stroke: Folate deficiency may increase stroke risk

Folate: How To Lower Your Risk Of Heart Disease

Prostate Cancer: Folate could lower your risk

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