High Blood Pressure Support in Greenville, SC
High Blood Pressure Support at IHP Greenville. Dr. Hendry, DAOM — functional medicine, root-cause diagnostics, personalized care. Call (864) 365-6156.
"Dr. Hendry has been working with me to heal my GI tract. 100% improvement in how I feel, taking 1/4 of my blood pressure meds, and am no longer taking cholesterol meds."
— Karen Hill · January 2025 · Google Review
Magnesium relaxes arterial smooth muscle through calcium channel inhibition — the same mechanism as calcium channel blocker antihypertensives — and is deficient in a large proportion of hypertensive patients because magnesium deficiency is endemic in Western diets. Houston's cardiovascular research documented that magnesium, omega-3, and CoQ10 each independently reduce blood pressure through distinct mechanisms. Before any patient with stage 1 hypertension goes on a medication they may take for life, I want to know their RBC magnesium, omega-3 index, fasting insulin, and cortisol curve. Cortisol drives RAAS activation through mineralocorticoid receptors — HPA axis dysregulation raises blood pressure independent of dietary sodium. These mechanisms are addressable. The protocol takes 90 days to confirm.
How High Blood Pressure Support Works
Blood pressure support at IHP combines functional medicine investigation (kidney function, inflammatory markers, magnesium and potassium status, cortisol curve, sleep apnea screening, and dietary analysis), acupuncture (which has documented antihypertensive effects via sympathetic nervous system reduction and endorphin release), Chinese herbal medicine (herbs with clinical evidence for blood pressure reduction, including dan shen and uncaria), and lifestyle protocol (dietary sodium, DASH diet implementation, magnesium supplementation, and stress reduction).
Conditions Treated with High Blood Pressure Support
Mechanism-Specific Nutritional Intervention vs. Immediate Antihypertensive Prescription for Stage 1 Hypertension
ACC/AHA guidelines for stage 1 hypertension (130-139/80-89 mmHg) recommend lifestyle modification for three to six months before pharmacological treatment in patients without cardiovascular disease or diabetes. In practice, this window is frequently bypassed, and antihypertensives are prescribed at the first elevated reading. This is not always wrong; some patients have cardiovascular risk profiles that justify immediate pharmacological action. But for the 46-year-old woman presenting with consistent readings of 136/88 mmHg and no additional cardiovascular risk factors, the mechanism should be identified before the prescription is written. Our evaluation reveals RBC magnesium below the functional threshold, an omega-3 index of 3.1%, fasting insulin of 20 mIU/L indicating insulin resistance with RAAS activation, and a diurnal cortisol curve showing elevated afternoon and evening values consistent with HPA-driven mineralocorticoid receptor activation. A 90-day protocol using magnesium glycinate 400 mg, EPA/DHA 3 g daily, berberine for insulin sensitization, and adrenal adaptogen support to reduce cortisol-driven RAAS activation produces repeat readings of 122/76 mmHg. Antihypertensive medication remains available if the biological intervention is insufficient; the advantage of this approach is that it identifies and corrects the mechanism rather than pharmacologically overriding it.
Research & Evidence
Essential hypertension is mechanistically driven by endothelial dysfunction, renin-angiotensin-aldosterone system (RAAS) dysregulation, sympathetic nervous system hyperactivation, and nutritional deficits in magnesium, potassium, and omega-3 fatty acids, all of which are addressable through targeted nutritional and integrative protocols before pharmacological intervention becomes necessary. Houston (World J Cardiol. 2014) conducted a comprehensive review demonstrating that magnesium, omega-3 fatty acids, coenzyme Q10, and L-arginine each produce clinically significant blood pressure reductions through distinct mechanisms: magnesium regulates vascular smooth muscle calcium channel activity, omega-3 reduces endothelial eicosanoid-driven vasoconstriction, CoQ10 improves mitochondrial endothelial function, and L-arginine increases nitric oxide bioavailability. Hannibal and Bishop (Phys Ther. 2014) documented that HPA axis dysregulation and chronic cortisol elevation activate the RAAS through cortisol's mineralocorticoid receptor agonism, increasing renal sodium retention and vascular resistance independently of dietary sodium intake. Huang (Dis Model Mech. 2009) established that insulin resistance-driven hyperinsulinemia activates sympathetic nervous system output and renal sodium reabsorption, creating a hypertension mechanism entirely unrelated to salt intake but directly responsive to insulin sensitization. Our hypertension protocol quantifies magnesium, omega-3 index, cortisol curve, fasting insulin, and RAAS biomarkers to identify which of these mechanisms is driving each patient's blood pressure elevation.
Your First Appointment
Bring home blood pressure readings (multiple readings at different times of day are more informative than a single office measurement). Bring your current medication list. Describe dietary patterns, alcohol intake, stress level, and sleep quality.
Why Dr. Hendry for High Blood Pressure Support
Dr. Hendry's functional medicine investigation identifies the modifiable drivers of elevated blood pressure — magnesium deficiency, sleep apnea, cortisol excess — that conventional antihypertensive prescribing does not address.