Maximizing Sterol Effectiveness: Study

A recent study, published in Food & Nutrition Research (January 2009), found that while sterols uniformly worked to lower LDL cholesterol, their power is affected by a number of factors. The study assessed 59 randomized clinical trials published from 1992 to 2006. Maximum results were found where patients:

• Consumed 2.5 grams of sterols or stanol per day. The FDA allows a health claim for products containing as little as .4 grams of plant sterols or .65 grams of plant sterol esters. As such, individuals will often need to take multiple servings of plant sterol products to attain the optimum daily intake. Consumption beyond 2.5 grams did not lead to further reductions ( Foods with Plant Sterols).
• Took plant sterols over the course of the day. Multiple servings were generally found to be more effective than a single serving.

Not surprising, sterols lowered LDL cholesterol by more among individuals with high or very high cholesterol levels, but sterols also proved effective among individuals with optimal to borderline-high LDL cholesterol. The authors also sought to assess the power of sterols across different types of foods. While they generally found that foods with some fat content (greater than 3 grams per serving) and low-fat milks and yogurts may be somewhat better, the evaluation does not appear to control for other elements of diet, lifestyle and medications. More research in the role of plant sterols coupled with a broader approach to therapeutic nutrition for cholesterol management is merited.

Viscous Soluble Fiber: Recommendations from the National Cholesterol Education Program

NCEP Discussion (excerpt): Because of the favorable effects of viscous fiber (soluble fiber from oats, fruit pectins, guar, beans and psyllium) on LDL cholesterol levels, the NCEP recommends that the therapeutic diet be enriched by foods that provide at least 5-10 grams of viscous fiber daily (Source of Soluble Fiber Chart). Even higher intakes of 10-25 grams per day can be beneficial.

NCEP Evidence Statement: 5-10 grams of viscous fiber per day reduces LDL cholesterol levels by approximately 5 percent (Strength of Evidence: A2, B1).

NCEP Recommendation: The use of dietary sources of viscous fiber (soluble fiber from certain sources) is a therapeutic option to enhance LDL lowering.

Lowering Cholesterol: A Piece of the Heart Health Puzzle

The relationship between LDL cholesterol and cardiovascular diseases has been well-documented and summarized by the NIH's National Cholesterol Education Program.

Epidemiologic studies (i.e. research that associates the lifestyles of different populations or groups to a disease), laboratory studies (i.e. research into the effects of certain nutrients or medication on cells outside the body) and clinical studies (research on the effects of certain nutrients or medications on a living person) all show that cholesterol is a critical factor in the development of atherosclerosis.

Atherosclerosis occurs when plaque builds up on the walls of your arteries. This plaque leads to a narrowing and ultimate closing of an artery. Plaque also can break free of the arterial wall. It then can lodge further down your artery, causing a blockage that can lead to a stroke, heart attack, or a blood clot in your arms, legs or other parts of your body.

National Cholesterol Education Program Summary of Research

• Studies across different populations reveal that those with higher cholesterol levels have more arterial plaque and heart disease than those with lower levels. People who migrate from regions where average serum cholesterol in the general population is low to areas with high cholesterol levels show increases in their cholesterol levels as they acculturate. These higher levels in turn are accompanied by higher levels of heart disease.
• Atherosclerosis often can be identified in adolescence or early adulthood. The cholesterol level in young adulthood predicts development of heart disease later in life. In three prospective studies with long-term follow-up, detection of elevated serum cholesterol in early adulthood predicted an increased incidence of heart disease in middle-age.
• The power of elevated LDL to cause heart disease has been shown most clearly in persons with genetic forms of very high cholesterol. In these persons, advanced coronary atherosclerosis and premature heart disease occur commonly even in the complete absence of other risk factors. These disorders provide stronge evidence that LDL is a powerful cause.
• Since LDL-cholesterol levels of less than 100 mg/dL throughout life are associated with a very low risk for heart disease in populations, they can be called optimal. Even when LDL-cholesterol concentrations are near optimal (100–129 mg/dL), plaque formation occurs; hence, such levels must also be called above optimal. At levels that are borderline high (130–159 mg/dL), plaque formation proceeds at a significant rate, whereas at levels that are high (160–189 mg/dL) and very high (above 189 mg/dL) it accelerates further.
• A large number of clinical trials on cholesterol-lowering therapy have been carried out over the past four decades. The initial encouraging findings of earlier trials have recently been reinforced by the robust findings of a large number of studies.
  

The Research in Context: Only A Piece of the Puzzle

Lowering LDL cholesterol is not a guarantee of cardiovascular health. Many people on cholesterol-lowering medications still suffer heart attacks, strokes and other cardiovascular challenges. Similarly, LDL cholesterol levels above the "optimal" levels should not necessarily require an individual to proceed to a lifetime of cholesterol-lowering medications. Each of us should discuss this carefully with our medical providers.

In these conversations, however, you should recognize that cholesterol-lowering is only one piece of the puzzle. Some things to consider:

• Once built-up in your arteries, plaque is difficult to remove. Cholesterol-lowering therapies may only serve to reduce further development, but not fully remedy arterial health.
• The medical community also is investigating the role that different types of LDLs might play in the development of both plaque itself and the ability for plaque to remain “stable” and not break free from the arterial wall. This may be a factor even if LDL levels are low.
• Low levels (below 40mg/dl) of HDL cholesterol have been shown to be a risk factor for heart diseases and high levels (above 60mg/dl) have been associated with reducing the risk of heart disease and plaque development.

Beyond cholesterol management, cardiovascular health flows from different hereditary, environmental and lifestyle factors. It is a complex equation.

The important point: cholesterol management should be thought of as a lifetime approach, starting in your teens, to maintain cardiovascular health. Like weight-management and physical fitness, cholesterol management and its nutritional tools can promote long term health.

Kardea Nutrition's Natural Bars for Cholesterol Management

O.K. I have gone off on a policy & political tangent over the past view days. I do think that the events and debates of last week regarding cholesterol medications required that I chime in.

Focusing back to the core goal of Kardea: to develop nutritional tools that enable natural cholesterol management. As a formulation standard we look to multiple product attributes: delicious, convenient, natural, calorie-mindful and therapeutic.

To optimize these attributes, I started looking at those foods that I am likely to eat everyday. If I was already eating, I was likely to keep eating it. If I wasn't already eating, I did not want to add a new source of calories. The trick was how to keep it something I crave while being effective, being therapeutic.

The nutritional bars were a really convenient place to start. Before founding Kardea, I had spent the last 12 years of my life running a specialty chocolate company. I had developed a habit--a craving--for a daily piece piece of dark chocolate (with a late morning cup of coffee--this has to be one of nature's great taste combinations!).

Certainly, dark chocolate is getting good reviews for its cardiovascular benefits. I certainly have tracked this, and discussed it with some people over at the Yale Medical School. This science seems promising, but I am not sure I would yet incorporate chocolate into my program for natural cholesterol management. Instead, I looked to develop a substitute for my morning craving. The Kardea bars achieved this goal, and then some.

First off, I think these bars really are tasty. All natural ingredients such as almond butter, authentic spices like nutmeg, clove or cardamom, real fruit and full flavors.

These bars also provide meaningful levels of plant sterols (1 full gram), fiber (7 grams; 3 grams of heart hearthy soluble fiber) and protein (7 grams total and close to 4 grams of soy protein). The FDA has endorsed these nutrients for their ability to help improve blood lipid profiles including a lowering of LDL (bad) cholesterol.

While only 150 calories each, these bars are more satisfying that the morning chocolate fix. I suspect this is a tribute to the protein and fiber levels.

Further, the bars are sweentened with lower glycemic agave syrup and brown rice syrup. Couple these with the fibers which slow glucose uptake, and I feel that I evened out the sugar spike. So by lunch, I no longer have the urge to eat too fast and too much.

The whole family has been eating the samples through the development process. We all ---friends and family--really enjoy them. Our first production run is now scheduled for mid-February, and they will be available to ship at the end of this month.

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