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Sprudge Reports Grapefruit Juice May Prolong the Effects of Caffeine as CYP1A2 Enzyme Research Reshapes Caffeine Metabolism Guidance

Sprudge Documents Grapefruit Juice’s Effect on Caffeine Half-Life and Clearance According to a May 26 Sprudge report on the grapefruit-and-caffeine interaction, drinking grapefruit juice alongside coffee or other caffeinated beverages may meaningfully prolong the duration of caffeine’s effects in the body by slowing how quickly the liver clears the stimulant. According to published pharmacokinetic research
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Nature Communications Study Documents Caffeine Withdrawal Symptoms in Regular Coffee Drinkers as Gut-Brain Axis Research Reshapes Caffeine Tolerance Understanding

Nature Communications Study Documents Caffeine Withdrawal Symptoms According to a May 22 Nature Communications publication and parallel Sci.News coverage, a clinical study of regular coffee drinkers asked to abstain for two weeks documented measurable caffeine withdrawal symptoms including headaches, fatigue, drowsiness, and reduced cognitive performance in the first 48 to 72 hours after cessation. According
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NutraIngredients Reports Caffeine Boosts Cognitive Performance in Female Athletes Across Menstrual Cycle Phases as Sex-Specific Research Expands

International Research Team Documents Caffeine’s Cognitive Effects in Female Athletes According to a May 21 NutraIngredients report, new randomized double-blind placebo-controlled pilot research published in the journal Nutrients found that 400 milligrams of caffeine taken one hour before testing enhanced cognitive performance in eumenorrheic female athletes across all three menstrual cycle phases studied. According to
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AOL Reports 43-Year Harvard Study Links Daily Coffee and Caffeine Intake to 18 Percent Lower Dementia Risk

Harvard 43-Year Coffee and Dementia Study Documents 18 Percent Lower Risk According to a May 22 AOL health report and a parallel ScienceDaily summary of the underlying JAMA-published research, a 43-year prospective cohort study of more than 131,000 participants found that moderate caffeinated coffee consumption is associated with an 18 percent lower risk of dementia
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NutraIngredients Reports Pre-Exercise Caffeine Aids Fat Oxidation in Overweight Women as Sports Nutrition Research Expands Female-Specific Data

NutraIngredients Documents Caffeine’s Fat Oxidation Effect in Overweight Women According to a May 21 NutraIngredients report, new sports nutrition research suggests that caffeine intake before exercise may aid the breakdown of fats during aerobic exercise in overweight women — a finding that addresses a long-standing gap in caffeine-and-performance research that historically focused primarily on male
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ScienceX Reports Morning Coffee May Protect Early Parkinson’s Brains as Adenosine A2A Mechanism Draws Renewed Research Focus

ScienceX Documents Coffee’s Neuroprotective Edge in Early Parkinson’s According to a May 19 ScienceX report covered through May 21 MSN distribution, morning coffee consumption may give early-stage Parkinson’s brains a measurable cognitive edge in the daily moments where everyday thinking begins to slip. According to the report, the protective effect of caffeine on dopaminergic neurons
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MSN Reports Doctors Examine Matcha’s Caffeine Profile as L-Theanine Pairing Drives Renewed Scientific Interest

Matcha’s Caffeine Content Documented as Dose-Dependent on Powder Volume According to a May 20 MSN health report featuring medical commentary, the long-running question of whether matcha contains more caffeine than coffee depends almost entirely on serving size. According to Healthline’s referenced data, matcha contains between 19 and 44 milligrams of caffeine per gram of powder,
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ScienceDaily Reports Coffee Does Not Drive Long-Term Hypertension as Researchers Re-Examine Cardiovascular Risk Profile

ScienceDaily Publishes Major Cardiovascular Re-Analysis According to a May 18 ScienceDaily report, coffee may temporarily raise blood pressure but does not appear to drive long-term hypertension in moderate drinkers. According to the analysis, caffeine can briefly increase blood pressure by stimulating the heart and tightening blood vessels, particularly in consumers who do not drink coffee
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Daily Coffee News Reports Paraxanthine Is Emerging as a Caffeine Alternative in Coffee and Energy Drinks

A New Stimulant Compound Enters the Beverage Category According to a May 18 Daily Coffee News report, paraxanthine — the primary metabolite the human body produces when it breaks down caffeine — is now appearing in coffee products, energy drinks, and supplement formulations as a standalone stimulant ingredient. The compound was traditionally encountered only inside
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ScienceDaily Reports Moderate Coffee and Tea Intake Linked to 35% Lower Dementia Risk

ScienceDaily Highlights New Analysis Linking Coffee and Tea to Reduced Dementia Risk A major caffeine science storyline broke this week with a ScienceDaily report covering newly synthesized research on dementia prevention. According to ScienceDaily’s May 13 article, moderate daily coffee and tea intake may lower dementia risk by as much as 35% based on a