Does Mushroom Coffee Raise Blood Pressure?

Mushroom coffee, a beverage blending traditional coffee grounds with dried, powdered functional mushrooms, has rapidly gained attention as a wellness trend. This combination promises the familiar energy boost of coffee while integrating the health benefits of fungi. A central question arises regarding this hybrid drink: does the addition of mushrooms counteract the stimulating effects of caffeine on the circulatory system, specifically concerning blood pressure? Determining the effect requires examining the distinct actions of both the coffee and the mushroom components.

Understanding the Caffeine Component

The coffee element introduces caffeine, a known cardiovascular stimulant that has a direct and temporary effect on blood pressure. Caffeine works by blocking adenosine receptors in the body, which normally help relax blood vessels and slow the heart rate. This blockade leads to peripheral vasoconstriction, causing blood vessels to narrow. The narrowing of blood vessels increases systemic vascular resistance, which causes an acute, temporary spike in blood pressure. This acute pressor response typically lasts for a few hours after consumption. Caffeine consumption also increases circulating epinephrine, a stress hormone, which further contributes to the temporary rise. Even if a mushroom coffee blend contains less caffeine than a standard cup, the stimulant’s pharmacological action remains the baseline risk factor. Individuals managing hypertension should note that this acute rise, even if modest, can be a concern.

How Adaptogenic Mushrooms Influence the Circulatory System

The functional mushrooms included in these blends are often classified as adaptogens, substances that help the body resist and adapt to physical or emotional stress. This adaptogenic property can indirectly influence blood pressure by modulating the body’s stress response. Specific compounds found in mushrooms like Reishi and Chaga may exert direct effects on the circulatory system. For instance, the triterpenes and beta-glucans in Reishi mushrooms have been studied for their potential to support cardiovascular health. These compounds may contribute to vasodilation (the widening of blood vessels), potentially mitigating the vasoconstrictive effect of caffeine. Reishi mushrooms are also noted for their potential to lower blood pressure, which could directly counter the short-term hypertensive effect of the coffee. Cordyceps mushrooms are known to support adrenal function and enhance oxygen utilization, promoting overall systemic balance. The net effect of these fungal compounds is a tendency toward stress reduction and blood pressure moderation, setting up a complex interaction with the caffeine component.

Current Evidence and Safety Considerations

Net Effect and Monitoring

The net effect of mushroom coffee on blood pressure is a balancing act between the hypertensive action of caffeine and the hypotensive properties of the adaptogenic mushrooms. For many people, the overall outcome is often neutral or results in a smaller temporary blood pressure spike compared to regular coffee. This is often because some mushroom coffee brands are formulated with a lower caffeine content than traditional brews. Individuals with pre-existing hypertension should monitor their blood pressure after consuming mushroom coffee to understand their personal response. Checking blood pressure 30 minutes to an hour after consumption is prudent to observe the acute pressor effect. The long-term effect may lean toward slightly lower blood pressure due to the sustained intake of adaptogenic compounds.

Interactions with Medications

A significant safety concern involves potential interactions with prescription medications. Consulting a healthcare provider is necessary before incorporating mushroom coffee into a routine, especially when managing existing health conditions or taking prescription drugs. Mushrooms like Reishi and Chaga may have effects that lower blood pressure. This could be problematic for individuals already taking antihypertensive drugs, potentially leading to excessive drops in pressure. Furthermore, mushrooms such as Reishi and Chaga may possess anticoagulant properties, increasing the risk of bleeding when combined with blood-thinning medications like warfarin.