RB, sugar-free RB, and water + caffeine increased BP equally (3–4 mmHg) in comparison to water + placebo (P < 0.001).
EVIDENCE-BASED ANSWER. For several hours after consumption of commercial energy drinks, diastolic blood pressure increases (range of 2.2–7.0 mmHg). Systolic blood pressure inconsistently increases by up to 4.4 mmHg (SOR: C, meta-analysis of randomized controlled trials [RCTs] and 2 additional small RCTs).
Drinking energy drinks daily can lead to an increased risk of heart disease, including irregular heartbeat and high blood pressure. Dehydration: Energy drinks can contain high levels of sugar or artificial sweeteners (Sucralose and Acesulfame K.) along with caffeine, which can lead to dehydration.
Energy drinks have been known to dehydrate your body, especially if used while exercising. High levels of sugar and caffeine may produce symptoms including irritability, anxiety, sleeplessness, and nausea severe enough to require hospitalization.
In a study from "Circulation," the average heart rate increases between five and seven beats per minute after consuming energy drinks. The average resting heart rate is between 60 and 100 beats per minute.
Drinking two Red Bulls a day can lead to several adverse health effects. Red Bull contains high levels of caffeine and sugar, which can cause increased heart rate, jitters, and anxiety.
'Patients with high blood pressures or long QT syndrome should use caution and judgment before consuming an energy drink. 'Since energy drinks also contain caffeine, people who do not normally drink much caffeine might have an exaggerated increase in blood pressure.
Most energy drinks contain 100–300 milligrams of caffeine per serving, although amounts can vary. Up to 400 milligrams of caffeine per day is considered safe for most adults. People who are pregnant or breastfeeding should limit their intake to 200 milligrams or less per day.
Large amounts of caffeine may cause serious heart and blood vessel problems such as heart rhythm disturbances and increases in heart rate and blood pressure. Caffeine also may harm children's still-developing cardiovascular and nervous systems.
Having more than two drinks in a day may raise your blood pressure. Drinking more than one or two drinks in a sitting has been directly linked to a rapid rise in blood pressure, which in someone with very high levels of hypertension can lead to stroke.
Reviews of caffeine's acute effect on blood pressure indicate changes of 3-15 mm Hg systolic and 4-13 mm Hg diastolic. Typically, blood pressure changes occur within 30 minutes, peak in 1-2 hours, and may persist for more than 4 hours.
Troubling Stats. Research shows that consumption of highly caffeinated drinks can lead to a potentially serious heart condition known as Atrial Fibrillation, or Afib, a type of irregular heartbeat (arrhythmia) occurring in the upper chambers of the heart.
Red Bull
Red Bull is known to be one of the unhealthiest energy drinks. But why? Red bull contains 151 mg of caffeine and 51 grams of added sugar (101% of suggested intake) for a 16 oz can. Along with that, it exceeds the percentage of suggested vitamins/minerals.
Is taurine safe? Answer From Katherine Zeratsky, R.D., L.D. Taurine, in certain amounts, is a safe drink ingredient in the United States. Taurine occurs naturally in foods with protein, such as meat or fish.
Red Bull® Energy Drink contains several ingredients including caffeine, taurine, glucuronolactone, B vitamins, and inositol. The combination of these ingredients is believed to account for the positive effects on cognitive performance, attention, and driving performance.
Drinking more than 4 cups of coffee a day may increase your blood pressure. If you're a big fan of coffee, tea or other caffeine-rich drinks, such as cola and some energy drinks, consider cutting down.
Keep in mind that the amount of caffeine in coffee, energy drinks and other beverages varies by brand and method of preparation. Also, if you have high blood pressure, avoid caffeine right before activities that naturally increase your blood pressure, such as exercise, weightlifting or hard physical labor.