How much caffeine is in Liu An Gua Pian tea?

Liu An Gua Pian tea contains approximately 25-40mg of caffeine per 8oz cup, similar to other green teas. This is roughly half the caffeine content of black tea and one-third that of coffee.

What makes Liu An Gua Pian different from other green teas?

Liu An Gua Pian is unique because it uses only leaf buds without stems, creating a flat appearance after processing. It reportedly contains higher L-theanine levels in processing byproducts compared to other cultivars.

Can Liu An Gua Pian tea help with weight loss?

No specific studies exist for Liu An Gua Pian and weight loss. General green tea research suggests EGCG may increase metabolism by 4-8%, but evidence for this particular cultivar is lacking.

How should Liu An Gua Pian tea be prepared for maximum benefits?

Steep Liu An Gua Pian in 175-185°F water for 2-3 minutes to optimize catechin extraction while minimizing bitterness. Higher temperatures may degrade beneficial compounds like L-theanine.

Are there any side effects of drinking Liu An Gua Pian tea?

Side effects are typically mild and related to caffeine content, including jitteriness, insomnia, or upset stomach if consumed in excess. Tannins may cause nausea on an empty stomach in sensitive individuals.

Is Liu An Gua Pian safe to drink during pregnancy or while breastfeeding?

Liu An Gua Pian contains caffeine, which pregnant women are generally advised to limit to less than 200 mg per day according to health guidelines. While the polyphenols in green tea are studied for potential benefits, the caffeine content makes it prudent to consult a healthcare provider before consuming Liu An Gua Pian during pregnancy or breastfeeding, as individual sensitivity varies.

Can Liu An Gua Pian interact with blood thinners or heart medications?

Liu An Gua Pian contains catechins that may have mild anticoagulant properties, which could theoretically interact with blood thinners like warfarin or aspirin. If you take cardiovascular or anticoagulant medications, consult your healthcare provider before regularly consuming Liu An Gua Pian, as interactions depend on dosage and individual factors.

What is the evidence quality for Liu An Gua Pian's health benefits compared to clinical studies on other green teas?

There are no clinical studies specific to Liu An Gua Pian cultivar; evidence for its benefits relies on theoretical analysis of its polyphenol composition rather than human trials. While general green tea has some clinical support for antioxidant activity, claims about Liu An Gua Pian's unique benefits remain based on traditional use and analytical data rather than robust clinical evidence.

Liu An Gua Pian (Camellia sinensis)

Liu An Gua Pian is a Chinese green tea cultivar from Anhui Province containing polyphenolic compounds including catechins (EGC, EGCG, ECG) and elevated L-theanine levels. The catechins exhibit antioxidant activity through free radical scavenging mechanisms, while L-theanine modulates neurotransmitter activity.

Category: Tea Cultivars Evidence: 2/10 Tier: Traditional

Liu An Gua Pian (Camellia sinensis) — Hermetica Encyclopedia

Origin & History

Liu An Gua Pian is a renowned Chinese green tea cultivar variant of Camellia sinensis L., originating from Lu'an City in Anhui Province, China, and recognized as one of China's top ten most famous teas. Unlike most green teas, it is produced primarily from mature leaves and stems rather than young buds, processed through traditional methods including fixation, rolling, and drying without fermentation.

Historical & Cultural Context

Liu An Gua Pian has been produced in Lu'an since the Ming Dynasty (1368–1644 CE), valued for its unique flavor from mature leaves/stems rather than young shoots. It is consumed as a traditional Chinese beverage for refreshment and potential health benefits, though specific therapeutic uses in traditional Chinese medicine systems are not elaborated beyond general green tea applications.

Health Benefits

• No clinical evidence available - traditional use suggests general green tea benefits but no studies specific to this cultivar
• Contains polyphenols including catechins (EGC, EGCG, ECG) in leaves - evidence quality: theoretical based on composition only
• Higher L-theanine content in stems compared to leaves - evidence quality: analytical data only, no clinical outcomes
• Caffeine content present in leaves - evidence quality: compositional analysis only
• Traditional refreshment beverage since Ming Dynasty (1368-1644 CE) - evidence quality: historical/traditional use only

How It Works

The catechins EGCG and ECG in Liu An Gua Pian tea scavenge reactive oxygen species and inhibit lipid peroxidation through phenolic hydroxyl groups. L-theanine crosses the blood-brain barrier and modulates GABA, dopamine, and serotonin neurotransmitter systems. These compounds work synergistically to provide antioxidant protection and potential neurological effects.

Scientific Research

No human clinical trials, RCTs, or meta-analyses specifically on Liu An Gua Pian tea were identified. While general Camellia sinensis research exists on related cultivars, none link directly to this variant's leaves or stems, and PubMed PMIDs for Liu An Gua Pian-specific studies are unavailable.

Clinical Summary

No clinical studies have specifically investigated Liu An Gua Pian tea cultivar. General green tea research shows catechins like EGCG may reduce oxidative stress markers by 10-25% in human studies with 200-400mg daily doses. L-theanine studies typically use 100-200mg doses showing modest effects on stress markers and cognitive function. Evidence for this specific cultivar remains theoretical based on compositional analysis only.

Nutritional Profile

{"macronutrients": {"protein": "0.2g per 100ml brewed tea", "fiber": "Negligible in brewed tea"}, "micronutrients": {"vitamins": {"Vitamin C": "Trace amounts", "Vitamin B2 (Riboflavin)": "Trace amounts"}, "minerals": {"Potassium": "10mg per 100ml brewed tea", "Magnesium": "1mg per 100ml brewed tea", "Calcium": "1mg per 100ml brewed tea"}}, "bioactive_compounds": {"polyphenols": {"Catechins": "100-200mg per 100ml brewed tea", "EGCG": "60-100mg per 100ml brewed tea"}, "L-theanine": "6-8mg per 100ml brewed tea", "Caffeine": "20-30mg per 100ml brewed tea"}, "bioavailability_notes": "Bioavailability of catechins and L-theanine can be influenced by brewing time and temperature. Caffeine content may vary based on brewing strength."}

Preparation & Dosage

No clinically studied dosage ranges for Liu An Gua Pian (extract, powder, or standardized forms) are reported, as no human trials were found. Traditional consumption is as brewed tea from leaves/stems, but standardization details are not specified for clinical contexts. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Other green tea cultivars, L-theanine supplements, traditional Chinese teas, general Camellia sinensis products

Safety & Interactions

Liu An Gua Pian tea is generally safe when consumed in typical amounts (2-3 cups daily). Caffeine content may interact with stimulant medications and cause insomnia or anxiety in sensitive individuals. High catechin intake may reduce iron absorption and interact with anticoagulant medications. Pregnant women should limit consumption to 1-2 cups daily due to caffeine content.