Bakery products lower serum cholesterol concentrations in hypercholesterolemic men

Area of Science:

• Nutrition Science
• Cardiovascular Health

Background:

• Water-soluble fiber-rich foods are known for their cholesterol-lowering properties.
• Dietary fiber plays a crucial role in managing lipid profiles and cardiovascular health.

Purpose of the Study:

• To investigate the hypocholesterolemic effects of increased soluble fiber intake from refined, wheat-based bakery products.
• To assess the impact of soluble fiber from a novel dietary source on serum lipid concentrations in hypercholesterolemic individuals.

Main Methods:

• A controlled feeding study involving 10 hypercholesterolemic subjects.
• Participants consumed a high-fiber control diet for 7 days, followed by a diet enriched with soluble fiber from bakery products for 21 days.
• Both diets provided 25 g of total dietary fiber daily, with the experimental diet offering an additional 6 g of soluble fiber.

Main Results:

• Serum total cholesterol decreased by 6.4% during the bakery product diet.
• Significant reductions were observed in low-density-lipoprotein cholesterol (8.5%), apolipoprotein B-100 (8.7%), and the apolipoprotein B-100 to apolipoprotein A-I ratio (9.5%).
• These changes were statistically significant (P < 0.05).

Conclusions:

• A modest increase in daily soluble fiber intake (approximately 6 g/d) effectively lowers atherogenic serum cholesterol concentrations.
• The cholesterol-lowering benefits of soluble fiber are consistent, irrespective of the specific food source, including wheat-based bakery products.
• Findings support the inclusion of soluble fiber-rich foods for managing hypercholesterolemia and promoting cardiovascular health.