Episode
The Gary Null Show - 7-29-26
- Podcast
- The Gary Null Show
- Published
- Jul 29, 2026
- Duration seconds
- 4174
- Processing state
not_requested
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Summary
HEALTH NEWS Review finds blueberry and grape polyphenols may improve vascular health Plant compound shows promise for treating rheumatoid arthritis at its source, study finds Screen Time at Ages 1 and 6 Linked to Lasting Learning and Memory Effects Some caffeinated drinks are linked to poorer memory Study: Morning Exercise Linked to Lower Daily Calorie Intake Compared to Evening Workouts Review finds blueberry and grape polyphenols may improve vascular health Universidad Católica de Murcia (Spain), July 27 2026 (News-Medical) A recent review published in the journal Nutrients examined the evidence on the effects of blueberries, grapes, and their bioactive compounds on cardiovascular risk markers. In the present study, a comprehensive systematic literature search was conducted to identify randomized controlled trials (RCTs), systematic reviews, and meta-analyses published from January 2015 through April 2026. Two systematic reviews and meta-analyses reported that grape polyphenols at doses exceeding 500 mg/day for at least 12 weeks significantly reduced C-reactive protein levels, while the other reported improvements in vascular function or BP in 84% of the human studies it assessed, including a significant reduction in systolic BP. One found a modest reduction in BP and improvement in endothelial function with flavan-3-ol foods, such as tea, apples, cocoa, and grape-derived products. Moderate- and high-quality RCTs reported improvements in lipid peroxidation, lipid profiles, flow-mediated dilation, diastolic BP, and paraoxonase activity. Resveratrol and blueberry RCTs mainly reported endothelial and vascular benefits, such as improved nitric oxide production and flow-mediated dilation and reduced BP and inflammatory markers. One high-quality RCT involving older men wit…