Sterols and Sterolins - a
Natural Health Supplement

Natur-Leaf ® - available in the U.S.A. since 1999.

Plant Sterols/Sterolins

Immune System Health and Vitality

See what doctors say about Natur-Leaf ®

“Many of the patients that I see in my clinical practice suffer from problems with their immune systems. I am very satisfied with the results that I have seen in a wide variety of conditions. I invite other clinicians to learn about the benefits of Natur-Leaf.”
Dr. H.B. Assoc. Professor of Nutrition(New York)

I just wanted to say that Natur-Leaf ® is one of the few that I have consistently taken over the past years. More than once a bug has come through our house and I only got a touch of it or none at all. Of course I do get the small common cold, but other viral bugs that are really horrible, do not bother me. I now have my husband taking your product...usually he gets sick and it turns into pneumonia. This year, that did not happen. So I am feeling that I might have him around for a while.

I think the most important thing is that people know that you can't just take this product for a few weeks.... it has a cumulative effect from what I can tell.

Thanks again, for making a product that does what it says it will do and more!

A.P. (Florida)

“Your plant sterol product, Natur-Leaf, has been OUTSTANDINGLY HELPFUL to me. It has increased my ability to fight off infections of all kinds. I do hope your business will prosper and expand. If I had to do without your product, I would be in very bad shape. Thanks so much for your work.
Dr. W.C.(New Jersey)

Since introduced in 1999, Natur-Leaf ® has become the worldwide leader in sterol/sitosterolin health supplements. “Sterols and sterolins consist of certain vegetable fats that wield extraordinary immunomodulatory effects on human organisms.”
Dr. Peter R. Rothschild

For their complete testimonies and other testimonies, click here.

Natur-Leaf ® - An excellent way to lower cholesterol while providing needed nutrition to help maintain and/or restore a healthy immune system. A healthy immune system protects the body from infections, cancer, illness, influenzas (the flu), and autoimmune diseases such as rheumatoid arthritis, chronic fatigue syndrome, benign prostatic hypertrophy (BPH), and lupus symptoms.

Scientists first isolated sterols, plant fats - and their glucosides, sterolins, natural compounds found in all fruits and vegetables, as far back as 1922. However, their remarkable health benefits were only realized and confirmed by extensive research in the last two decades.

What is Natur-Leaf ®?

Natur-Leaf ® is a unique natural health supplement, providing the immune system with vital essential plant fats (sterols and sterolins, including beta-sitosterol), lacking in today's diets. Natur-Leaf ® is derived from a proprietary blend of natural plant sprouts, African potato root (imported from South Africa), along with the healthful natural ingredients taken from the Boswellia serrata tree bark resin found in India and Arabia (more Natur-Leaf ® Ingredients information)

The sprouts are organically grown from non-GMO seeds, carefully harvested and freeze-dried for near-perfect preservation - without heat extraction! The sprouts are harvested at their peak, frozen the same day and freeze-dried immediately. The encapsulating and bottling is handled under pharmaceutical standards. Natur-Leaf ® is packaged as carefully as prescription medicine. It contains vitamins, minerals, and other phytonutrients in addition to sterols and sterolins.

Does research show sterol, sterolin, and beta-sitosterol benefits?

Yes! Clinical Studies and antidotal usage have been done for over 25 years showing that plant sterols and sitosterolins are potent immune modulators capable of reversing abnormalities of the immune system. Various combinations of sterols and sterolins have been shown to provide nutritional support for the symptoms of benign prostatic hypertrophy (BPH), rheumatoid arthritis, autoimmune diseases, chronic fatigue syndrome, lupus symptoms, migraine headaches, menopause symptoms, and for optimal cholesterol balance. (more plant sterols and sitosterolins research)

Who should use Natur-Leaf ®?

Natur-Leaf should be a mainstay in every household because sterols and sitosterolins are powerful factors in the immunological fight against sickness. Dr. Karl Pegel, Ph.D., whom many consider the foremost authority in the world on sterols/sterolins, points out that "there are a lot of seemingly healthy people who actually are rather sick. While sterols and sterolins are not the answers to all ills, they certainly may be classified in the same category with vitamins C and E or Magnesium."

Is Natur-Leaf ® available in the USA?

Until 1999, these phytosterols have been available only in Europe and South Africa. Today, Natur-Leaf ® - buttressed by an exclusive process of growth and processing of natural plant sprouts - offers this veritable breakthrough in health supplementation to a worldwide market of health-conscious consumers. It contains some of the strongest, yet most balanced proportions of sterols and sterolins (including beta-sitosterol) available in the world today. It is now available in vegi-capsules that are easily administered and has been taken by thousands of customers with no reported side effects.

Why Natur-Leaf ®?

Lifeline Inc. has always been a leader in providing unique natural supplements to the health-conscious consumer. After several years of research and analysis of potential supplements, in 1999 we chose to introduce Natur-Leaf ®, the finest natural sterol/sitosterolin product available today. The reason for choosing this unique natural product was based on the vital benefits to the immune system while providing your body with life-enhancing phytonutrients.

Imitation products

Do not be confused with the imitation products that have been coming out on the market in the last couple of years (i.e. spreads, drinks, pills). Natur-Leaf ® not only has 80 mg of sterols per serving size and helps block cholesterol absorption due to the sterols, but more importantly it also provides you with sterolins, a glucoside of the sterols which is needed for the sterols to be absorbed and useful to the immune system. Without the sterolins, you will miss the main health benefits of the sterols.

“Karl H. Pegel, Ph.D., Professor in the Department of Chemistry and Applied Chemistry, University of Natal, Durban, South Africa, discovered that each sitosterol and its glucoside (sitosterolin) must be kept together molecularly in as close juxtaposition as possible to each other when using the plant fats therapeutically. This close juxtaposition is the way nature intended to have them synergistically react to create their full immune—enhancing response.” Pegel, K.H. “The importance of sitosterol and sitosterolin in human and animal nutrition.” South African Journal of Science 93:263-268, June 1997. (more The Holistic Lifestyle).

In order to get the full immune-enhancing benefits of sterols, you also need the sterolins to provide the bioavailability. Without your body being able to absorb the sterols they are not of much benefit other than to reduce cholesterol absorption. The best ratio of sterols to sterolins, according to Karl Pegel, Ph.D. (arguably one of the foremost authorities on sterols/sterolins since 1968), is 10:1 or better. Natur-Leaf’s ratio is about 6:1.


Morton Walker, D.P.M. writes, “Research studies have shown sterols and sterolins to provide important protective and therapeutic physiological effects for helping to maintain a healthy immune system.”

“Many of the patients that I see in my clinical practice suffer from problems with their immune systems. Over the years I have learned to better understand not only what the immune system is, but what can go wrong. When I first heard about Natur-Leaf I was excited about its clinical implications. Since including it in my treatment protocols, I am very satisfied with the results that I have seen in a wide variety of conditions. I invite other clinicians to learn about the benefits of Natur-Leaf.” Dr. H.B. Assoc. Professor of Nutrition

Professor Karl Pegel said in an interview, “I would simply advise any person with arthritis to supplement their diet with sitosterolins.”

Professor Patrick J.D. Bouic tells us that sterols/sterolins are effective for the control of rheumatoid arthritis. “They do this by reversing the immune abnormality at the site of the disease and by preventing damage caused by inflammation. They target the abnormality and correct its immune dysfunction.” Townsend Letter for Doctors & Patients 193/194:51-52, Aug/Sept. 1999.

“I employ the sterols and sitosterolins to support my patients’ endocrine systems. Such plant fats are especially useful for treating autoimmune diseases, which cause metabolic breakdowns. In this regard, sterols/sitosterolins definitely are remedial for autoimmune diseases.” Dr. C. M.

“In conclusion, a product such as Natur-Leaf ® contains crucial plant fats, which could almost be classified as ‘vitamins’. Clearly they are essential nutrients. Dr. Pegel points out, that ‘there are a lot of seemingly healthy people who actually are rather sick. While sterols and sterolins are not the answers to all ills, they certainly may be classified in the same category with vitamins C and E or magnesium. Sterols/sterolins are really among the essential ingredients to keep the [human] machinery working. You should go back to the RDA in America and decide that they need to be added to your country’s list of recommended daily allowances.’ ” Townsend Letter for Doctors & Patients 193: 87-94, Dec 1999.

Dr. Chris Morris, ND, the Clinical Director of Transformational Health states:

"Thus, if there is any family predisposition to major or minor health issues for patients, supplementation with sterols/sitosterolins would be beneficial as a means of prevention. But I'm not using the phytosterols just as protectors against some illness; instead, I apply them generally as a source of patient vitality".

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Natur-Leaf is manufactured in an NSF cGMP Registered Facility

About Lifeline Inc.

1716 California NE
Albuquerque, NM 87110

Toll-free: 1-888-532-7845
Tel: 505-266-7374
Fax: 505-255-9316
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