Showing posts with label satiety. Show all posts
Showing posts with label satiety. Show all posts

Monday, March 07, 2011

ADULT WEIGHT MANAGEMENT interview, Vitamin Retailer magazine, February, 2011

Weight management products have long been an important category for natural product retailers, partially because it is such a problem for many people to control their weight but also since many people shop in these stores because they want to use natural products that are free of potentially risky pharmaceuticals. As a gateway category for transitional shoppers that may be new to health food stores, weight management products become an important gauge of a commitment to meeting these people’s needs and thus keeping them as customers willing to try other products. Of course, nutritionists will suggest a comprehensive diet and supplement plan, rather than relying on “magic bullet” single products.

Good Manufacturing Practices (GMP) regulations have gone into effect over the past several years, raising the bar on manufacturers’ quality control practices. At the same time, mandatory Adverse Event Reporting (AER) was also implemented. Both of these regulatory mechanisms should increase consumer confidence and belie the myth that the industry is “unregulated”.

I believe that the glut of stories about Americans being overweight tends to make people more aware of their own lack of exercise and dietary restraint, which contribute to their excess weight. Of course, health scares and medical crises also alert people to their mortality and tend to motivate healthy dietary and other lifestyle changes. Today’s youth-obsessed media makes people want to look young and fit even past middle age. Plastic surgery, being expensive and with some risks, is far from a perfect solution. There are no shortcuts to health, only natural aids to good health. The very visible failures of both diet drugs and illegal products pretending to be dietary supplements illustrate the depth of the market and the need for effective natural weight management products.

Consumers tend to look for something that was recommended to them, either by a person or an authority. The person could be a family member, co-worker, or an acquaintance. The authority could be someone cited in the media, on the Internet, or a trusted trainer or health professional. Top categories are controlling appetite (satiety), increasing metabolism (thermogenics), and blocking the absorption of certain food components such as carbohydrates or fats (nutrient blockers).

Natural foods and fibers are part of the solution to maintaining healthy weight and blood sugar. These foods would include whole grains as well as fibers from various sources. Some of these fibers are gluten-free and/or organic, such as Flax, Acacia, Inulin, and Psyllium. Fibers also help satiety, the feeling of being full.

Consumers today are more concerned about the quality and safety of diet support products, so are looking for assurances of adequate quality controls and testing. Some parts of this process include method validation and development, stability testing, identity testing, microbiological testing, heavy metal testing, specification development, overseeing production, procuring samples and preparing them for testing, and even raw material vendor audits.

Thursday, May 27, 2010

Excerpts from an iterview with me about natural sweeteners

A whole leaf, full spectrum extraction of stevia preserves the many phytonutrients naturally present in the plant. One study reported over 100 natural stevia phytonutrients; the majority being polyphenols and other plant antioxidants. By contrast, there are about 9 steviosides. But the new “Reb A” fraction products being sold as food sweeteners (PureVia™, Truvia™) represent only a single chemical isolated from the stevia plant, though these two sweeteners are actually sold with added sugar alcohol (Erythritol, see below) and “natural flavors”.


Some artificial sweeteners cannot be used in cooking; for example, aspartame. By contrast, natural sweeteners typically do not lose their sweetness when cooked. And studies have indicated that artificial sweeteners may backfire by shutting down the satiety signals that tell us when we’re full…in those studies the groups fed artificial sweeteners ate up to 3 times the calories as control groups.

Sugar alcohols don’t raise blood sugar as rapidly as sugar does, yet they’re as bulky as sugar so they can be used “spoon - for - spoon” to replace sugar. But their level of sweetness may vary, with xylitol being the closest to sugar. Sugar alcohols have a range of sweetness and absorption; the amount that is absorbed from the GI tract affects the possibility of it being somewhat laxative at high levels, which can vary from person to person. Sorbitol may be laxative at moderate levels of 10 grams or more, mannitol at over 20 grams; xylitol at over 30 grams. Erythritol is virtually free of a laxative side affect even at higher levels, but is expensive. Also, sugar alcohols tend to have a cooling effect in the mouth and actually taste better when combined with a different type of sweetener.

Sugar alcohols also boast an FDA-approved health claim: “Frequent between-meal consumption of foods high in sugars and starches promotes tooth decay. The sugar alcohols in [name of food] do not promote tooth decay.”

I think that organic maple syrup, agave and xylitol are doing quite well as natural sweeteners, with erythritol a more recent option that is catching up. The recent crossover of a certain isolated fraction of stevia (Reb A) as a mass market sweetener has some drawbacks: it doesn’t taste like whole leaf extract, and is combined with both erythritol and natural flavors. And there are certified organic full spectrum extractions without the typical bitter aftertaste or added flavoring agents.

Many stevia products are still only legal to sell as herbal dietary supplements, not as sweeteners. Some companies may think that all stevia products are now approved for use in foods, but that is not true. Retailers should take their cues from the packaging, and only carry reputable brands that strictly follow labeling laws. It is primarily the isolated “Reb A” fraction of stevia that can be used in foods. Most other stevias have not been approved for food use, with some exceptions.