The Nugget
- Daily ingestion of blueberry powder for six weeks increases natural killer cell counts and reduces arterial stiffness in sedentary individuals.
Key quotes
- "The main findings from this study are that consumption of 38 g of dehydrated BB powder on a daily basis for 6 consecutive weeks in sedentary adults resulted in significant changes in NK CD-56/16 cell types."
- "Individuals with prehypertensive pressures experienced significantly reduced diastolic pressure with BB compared with PL."
- "Lastly, a significant AIx and ASP reduction occurred with BB."
Protocol
- Sedentary males and females aged 18 to 50 were randomized to blueberry or placebo groups.
- Participants consumed blueberry powder equivalent to 250 g of berries daily for 6 weeks.
- Vascular measures, redox status, and NK cell counts were assessed pre- and post-supplementation.
- Methodology: 2x2 repeated-measures ANOVA was used for vascular measures, redox status, and NK cell counts.
Terminology
- Natural Killer Cells (NK cells): A type of white blood cell that plays a critical role in the immune system's response.
- Arterial Stiffness: The loss of arterial elasticity, often associated with aging and cardiovascular disease.
Key insights
Modulation of Natural Killer Cells
- Daily ingestion of blueberry powder led to a significant increase in NK CD-56/16 cell types.
- Sedentary individuals with prehypertensive pressures also experienced reduced diastolic pressure with blueberry supplementation.
Impact on Vascular Health
- Blueberry consumption resulted in a significant reduction in the Augmentation Index (AIx) and aortic systolic pressures (ASPs).
Make it stick
- 🫐 Blueberry powder increases killer cells & reduces stiffness.
- 🩺 Blueberries may improve immune response & cardiovascular health.
- 🌿 Blueberries: a powerful natural supplement for overall health.
- 🍇 Daily blueberry powder = better immunity & healthier arteries.
This summary contains AI-generated information and may be misleading or incorrect.