Monday, January 1, 2024

how does caffeine affect blood pressure in people with diabetes and heart stent?

Caffeine can temporarily increase blood pressure, but its long-term effects on blood pressure are unclear[1]. The blood pressure response to caffeine can differ from person to person[3]. For individuals with diabetes, caffeine can potentially raise blood sugar levels. One study found that people with type 2 diabetes who took a 250-milligram caffeine pill at breakfast had an 8% higher blood sugar level than on days when they didn't have caffeine[5]. 

For those with a heart stent, caffeine's impact on heart rate and blood pressure is a critical consideration. Moderate consumption of caffeine does not significantly increase the risk of a coronary event nor increase the frequency of cardiac arrhythmias[2]. However, heavy coffee consumption was associated with an increased risk of cardiovascular disease mortality among people with severe hypertension[10].

Habitual coffee drinkers become acclimated to these ingredients so their pressures don't rise more, but people who are not used to coffee can expect a temporary rise in their pressures after drinking coffee[11]. Drinking caffeine promotes the release of noradrenaline and norepinephrine which can increase heart rate and blood pressure in some individuals[14].

It's important to note that individual responses to caffeine can vary greatly, and what constitutes "too much" can differ from person to person. Therefore, it is best to consult with a healthcare provider to determine an appropriate amount of caffeine intake based on personal health status and medical history.

[1] What caffeine does to blood pressure
[2] Coronary precautions: should caffeine be restricted in patients after myocardial infarction? - PubMed
[3] Mayo Clinic Q and A: Caffeine's effects on blood sugar and blood pressure - Mayo Clinic News Network
[4] Caffeine Effects on the Cardiovascular System
[5] How Does Coffee Affect Your Blood Sugar?
[6] Drinking 2 or more cups of coffee daily may double risk of heart death in people with severe hypertension
[7] Habitual coffee consumption and blood pressure: An epidemiological perspective
[8] How much caffeine is too much? - Heart Matters magazine - BHF
[9] The impact of coffee consumption on blood pressure, cardiovascular disease and diabetes mellitus - PubMed
[10] Coffee and Green Tea Consumption and Cardiovascular Disease Mortality Among People With and Without Hypertension - AHA Journals
[11] Coffee and your blood pressure - Harvard Health
[12] Hypertension Risk Status and Effect of Caffeine on Blood Pressure - AHA Journals
[13] The Effect of Chronic Coffee Drinking on Blood Pressure | Hypertension - AHA Journals
[14] Q&A: What effect does caffeine have on your heart?
[15] People with very high blood pressure may want to go easy on the coffee

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