What Are Side Effects of Licorice Root？

Licorice root offers powerful natural benefits for digestion, adrenal health, cortisol balance, and inflammation relief, but improper long-term use can cause noticeable side effects. As a herbal pharmacist, I see many clients experience avoidable issues simply because they confuse regular licorice with DGL licorice or use full-spectrum licorice non-stop without cycling.

Nearly all licorice root side effects stem from glycyrrhizin, the active compound exclusive to regular licorice. DGL (deglycyrrhizinated licorice) removes this compound, so it carries almost no side effects for daily digestive use. Understanding this key difference is the foundation of safe licorice supplementation.

Disclaimer: This article is for educational wellness reference only, not medical treatment. If you experience persistent symptoms after using licorice, or have underlying chronic health conditions, consult a professional healthcare provider immediately.

Why Licorice Root Causes Side Effects

Glycyrrhizin, the core active ingredient in standard licorice root, licorice tea, and regular licorice extracts, alters kidney electrolyte regulation. It blocks the enzyme that balances sodium, water, and potassium excretion in the body.

When overconsumed long-term, this creates a chain reaction: the body retains excess sodium and water while flushing out potassium. This electrolyte imbalance triggers almost every common licorice side effect, from mild bloating to high blood pressure and heart irregularities.

Importantly, occasional short-term use rarely causes issues. Side effects almost always occur with continuous, uncycled daily use of regular licorice for multiple weeks or months.

Common & Severe Side Effects of Regular Licorice Root

Below are the most typical licorice-related adverse reactions ranked from mild to serious:

1. Mild, Common Side Effects

• Water retention & bodily puffiness: Excess sodium buildup causes swollen hands, feet, and overall bloating, even with no dietary changes.
• Mild elevated blood pressure: Increased blood volume puts extra pressure on blood vessel walls, leading to low-grade hypertension.
• Fatigue & muscle weakness: Low potassium levels disrupt normal muscle and nerve function, causing persistent tiredness and body heaviness.
• Headaches & dizziness: Electrolyte imbalance and fluctuating blood pressure often trigger recurring mild headaches.

2. Moderate to Severe Side Effects (Long-Term Overuse)

• Chronic hypertension: Prolonged glycyrrhizin intake leads to sustained high blood pressure that may not resolve immediately after stopping use.
• Heart palpitations & arrhythmia: Severe potassium deficiency disrupts heart rhythm, causing flutters, racing heartbeat, or irregular cardiac activity.
• Kidney strain: Continuous electrolyte fluctuation overburdens kidney filtration, worsening existing kidney dysfunction.
• Hormone irregularities: Overuse can disrupt aldosterone levels, leading to fluid imbalance and worsened adrenal instability.

Real Client Case: Licorice Overuse Side Effects

Here is a typical side effect case I encounter in daily herbal consultations:

A 38-year-old female client drank organic licorice tea every single day for 3 months to fix chronic fatigue and stress. She believed “natural herbs are risk-free” and never paused her usage. After two months, she started noticing swollen ankles, frequent headaches, and occasional heart flutters. A routine check revealed mildly elevated blood pressure and low potassium levels.

I instructed her to stop regular licorice entirely and switch to magnesium supplementation. Within three weeks, her swelling, palpitations, and headaches disappeared, and her blood pressure returned to normal. This case proves that uncycled long-term regular licorice use is the main cause of all avoidable side effects.

DGL Licorice: Zero Major Side Effects

For users confused about safety: DGL licorice has almost no side effects.

Since DGL is processed to remove glycyrrhizin completely, it does not disrupt electrolytes, raise blood pressure, or cause water retention. It only retains gut-healing, anti-inflammatory, and mucosa-repairing properties.

Mild rare reactions are limited to minor stomach upset if taken on a full stomach, which is not a toxic side effect. DGL is safe for long-term daily use for gastritis, ulcers, heartburn, and bloating.

High-Risk Groups Prone to Licorice Side Effects

These groups are far more susceptible to adverse reactions from regular licorice and should avoid it entirely:

• People with hypertension or high blood pressure
• Those with heart disease, palpitations, or arrhythmia
• Individuals with kidney impairment
• Anyone with low potassium levels
• Pregnant or breastfeeding women
• Users of blood pressure meds, diuretics, or steroids

How to Avoid Licorice Side Effects (Pharmacist Rules)

• Use DGL for all gut issues: Completely eliminates electrolyte and blood pressure risks
• Cycle regular licorice strictly: 4–6 weeks on, 1–2 weeks off for adrenal/cortisol support
• Avoid daily licorice tea long-term: Unregulated glycyrrhizin content leads to easy overconsumption
• Never combine with diuretics: Increases risk of severe potassium loss

FAQs (Licorice Side Effects)

Q: Are licorice side effects permanent?

A: No. Most side effects like high blood pressure, swelling, and headaches fully resolve within 1–3 weeks after stopping regular licorice use.

Q: Can DGL licorice cause side effects?

A: DGL is extremely safe. No electrolyte, heart, or blood pressure side effects have been documented. Rare mild stomach discomfort is the only possible reaction.

Q: How much regular licorice is too much?

A: Daily continuous use beyond 6 weeks is considered excessive and carries clear side effect risks. Always cycle usage.

Q: Does licorice cause weight gain?

A: Not fat gain. Any weight increase is temporary water retention from sodium buildup, which resolves after stopping use.

Final Pharmacist Verdict

Licorice root side effects are 100% preventable with correct usage. All dangerous reactions come from long-term, uncycled use of glycyrrhizin-containing regular licorice. For digestive health, DGL is the risk-free choice. For adrenal and cortisol support, strict cycling rules keep usage safe and effective. When used properly, licorice is one of the safest, most versatile natural herbal remedies available.