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Pure Encapsulations PureLean® Fiber

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Powdered blend of fiber and prebiotics to promote weight management† by supporting healthy microflora balance, glycemic response, satiety and regularity. Ships to the US only.

Promotes satiety, digestive health, nutrient absorption and healthy glycemic control‡
Supports healthy weight management†‡
Enhances healthy gut microflora without gas, bloating or other intestinal side effects‡
Offers a minimum of 6 grams of fiber per serving (7 grams typical)
1 gram glucomannan per serving
Great mild taste
No sugar, stevia or artificial sweeteners
Part of the PureLean® product line
Made with high-quality vegan ingredients backed by verifiable science


The gut microflora is now recognized as an important factor in overall health, with potential roles ranging from cellular and immune health to metabolic function and weight management.†1 Studies indicate that obese individuals possess lower levels of Bacteroidetes microorganisms and higher levels of Firmicutes bacteria in the GI tract compared to lean individuals.2 In one study, germ free mice inoculated with bacteria from obese mice showed increased Firmicutes bacteria and an increase in body fat over two weeks despite no change in dietary intake, compared to mice inoculated with bacteria from lean mice.3 In a double-blind, randomized, placebo-controlled study, 32 healthy adult subjects were given 1.4 grams or 2.8 grams of PreticX™ XOS for eight weeks. The Bifidobacterium count increased 21% from the baseline at four weeks and 17% from the baseline at eight weeks in the highest dose group. B. fragilis levels (a Bacteroidetes organism) were also found to increase.4‡ Similar results were found in another study involving healthy young women, which also showed PreticX™ supplementation resulted in an increase in fecal triglyceride and cholesterol concentrations.5 In contrast to many common prebiotics, these studies reported no gas, bloating or other intestinal sideeffects. Each serving of PureLean® Fiber provides 0.7 grams PreticX™ XOS and a minimum of 6 grams fiber, typically providing 3.5 grams soluble fiber from glucomannan, guar gum, apple pectin and prune fiber, and 3 grams insoluble fiber from flax seed and cellulose. Soluble fiber helps slow the rate of digestion, promoting satiety, digestive health, nutrient absorption and healthy glycemic control. It enhances satiety by absorbing water and adding bulk in the digestive tract.6-9 Research has revealed that the high molecular weight and viscosity of glucomannan is particularly supportive. Each serving of PureLean® Fiber contains 1 gram of glucomannan. Several randomized controlled trials indicate that glucomannan supports healthy weight management†, lipid metabolism and healthy glycemic control.10,11‡


Ages 18 and up
Digestive health and weight management support†‡

As a dietary supplement, take 1 serving, 1-3 times daily, mixed with a beverage.


Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, consult your health professional before use.

This product can expose you to lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.