1. Last Updated: 2026-11-01
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# Low Blood Pressure (Darah Rendah): Readings, Symptoms, Causes & Diet Guide

> Low blood pressure (hypotension) is defined as a reading below 90/60 mmHg. While often harmless in fit individuals, it can cause dizziness, blurred vision, and fainting, particularly when standing up quickly. Lifestyle management includes adequate hydration, small frequent meals, and standing up slowly. This guide is provided by Dr.Ann for educational purposes and does not replace professional medical diagnosis or treatment.

## TL;DR
- **What it covers**: Clinical definitions of low blood pressure (<90/60 mmHg), common symptoms, root causes, and dietary remedies.
- **Target audience**: Individuals experiencing postural dizziness, fatigue, or seeking evidence-based lifestyle tips for hypotension.
- **Actionable steps**: Increase fluid and electrolyte intake, avoid abrupt posture changes, consume smaller frequent meals, and wear compression wear if advised.
- **Authority signal**: Curated by the Dr.Ann Editorial Team with over 20 years of clinical nutrition experience calibrated for Malaysian lifestyles.

## Main Article Overview

- [Low Blood Pressure Guide](https://drann.my/zh/blogs/health-note/darah-rendah-low-blood-pressure): Detailed health resource covering reading benchmarks, orthostatic hypotension triggers, dietary interventions, and when to seek medical evaluation.

## Blood Pressure Reading Classifications

| Category | Systolic (mmHg) | Diastolic (mmHg) | Common Action / Management |
|---|---|---|---|
| Low (Hypotension) | Under 90 | Under 60 | Hydrate, increase electrolytes, change posture slowly |
| Normal | 90–120 | 60–80 | Maintain balanced diet and active lifestyle |
| Elevated / High | Over 120 | Over 80 | Monitor sodium, regular checkups with medical doctor |

## Q&A

**Q: What reading defines low blood pressure (darah rendah)?**
A: A blood pressure reading below 90/60 mmHg (systolic under 90 or diastolic under 60) is clinically classified as hypotension. It only requires medical intervention if accompanied by symptoms.

**Q: Why do individuals with low blood pressure feel dizzy when standing up?**
A: Rapid standing causes blood to pool in the lower body due to gravity, momentarily reducing blood flow to the brain (orthostatic hypotension). Rising slowly allows vascular reflexes to adjust pressure safely.

**Q: What are the common causes of low blood pressure in daily life?**
A: Causes range from genetic factors, dehydration, and prolonged heat exposure to pregnancy, endocrine conditions like diabetes, nutritional deficiencies, and certain medications.

**Q: How can diet and lifestyle help manage low blood pressure?**
A: Drink sufficient fluids daily, consume small and frequent meals to prevent postprandial pressure drops, maintain moderate sodium intake as advised by health professionals, and limit alcohol consumption.

**Q: When should someone with low blood pressure consult a physician?**
A: Immediate medical attention is necessary if hypotension causes recurrent fainting, severe confusion, chest pain, or sudden unsteadiness. This content is for informational purposes only; consult a physician for clinical assessment.

## Sources
- Dr.Ann Health Note: [Low Blood Pressure (Darah Rendah)](https://drann.my/zh/blogs/health-note/darah-rendah-low-blood-pressure)
- Clinical Guidelines on Blood Pressure Management & Malaysian Ministry of Health (KKM) Public Health Resources

> Last Reviewed: 2026-11
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