# Assamica Tea (Camellia sinensis)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/assamica-tea
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Tea
**Also Known As:** Camellia sinensis var. assamica, Assam tea, Indian tea tree, Broad-leaf tea, C. sinensis assamica, Cha (茶), Assam black tea, Malty tea

## Overview

Assamica tea is a variety of Camellia sinensis characterized by high catechin concentrations in its dense spongy mesophyll tissue. The catechins, particularly EGCG, work primarily through [antioxidant](/ingredients/condition/antioxidant) mechanisms and enzyme modulation, though no clinical studies exist specifically for this cultivar.

## Health Benefits

• No clinical evidence specific to assamica variety - general C. sinensis benefits may apply but are not studied for this cultivar
• Contains high catechin concentrations in dense spongy mesophyll - chemical analysis only, no health outcomes studied
• Traditional use for daily invigoration - historical use only, no clinical validation
• May share general tea polyphenol properties - no cultivar-specific research available
• [Antioxidant](/ingredients/condition/antioxidant) potential from catechins - theoretical based on composition, no assamica-specific studies

## Mechanism of Action

Catechins in assamica tea, particularly epigallocatechin gallate (EGCG), inhibit pro-oxidant enzymes and scavenge [reactive oxygen species](/ingredients/condition/antioxidant). These polyphenols may modulate [inflammatory pathway](/ingredients/condition/inflammation)s through NF-κB inhibition and influence metabolic enzymes. However, these mechanisms are extrapolated from general Camellia sinensis research, not assamica-specific studies.

## Clinical Summary

No clinical trials have specifically investigated the assamica variety of Camellia sinensis. Chemical analysis confirms high catechin content in the dense mesophyll tissue, but health outcomes remain unstudied for this cultivar. General Camellia sinensis research cannot be directly applied to assamica without variety-specific validation. Traditional use reports exist but lack scientific verification.

## Nutritional Profile

Assamica Tea (Camellia sinensis var. assamica) dry leaf composition per 100g: Protein 20-30g (high compared to other C. sinensis varieties, largely insoluble in brewed tea); Carbohydrates 40-50g (predominantly structural polysaccharides, cellulose, pectin); Dietary fiber 25-35g; Fat 2-5g (including linolenic acid and palmitic acid traces). Bioactive compounds are the primary nutritional interest: Total catechins 12-25% dry weight (notably higher than sinensis var. sinensis in raw leaf, though processing into black tea oxidizes majority to theaflavins and thearubigins); Epigallocatechin gallate (EGCG) 5-12% in fresh leaf (reduced to <1% in black tea form); Epicatechin (EC) and Epicatechin gallate (ECG) present at 1-3% combined; Theaflavins 0.5-2% in processed black tea form; Thearubigins 10-20% in black tea form (primary reddish-brown pigments). Caffeine content: 3.5-5.5% dry leaf weight — notably higher than var. sinensis (2.5-4%), reflecting assamica's larger, thicker leaves and dense mesophyll structure. L-Theanine: approximately 1-2% dry weight (lower ratio relative to caffeine compared to var. sinensis, contributing to more stimulating profile). Chlorogenic acids and flavonols (quercetin, kaempferol, myricetin glycosides): 0.5-1.5% combined. Minerals per 100g dry leaf: Fluoride 100-300mg (high, though brewed tea delivers approximately 0.1-0.3mg per 200ml cup); Manganese 300-2000mg (significant source via brewing); Potassium 1500-2500mg; Calcium 300-500mg; Magnesium 100-200mg; Zinc 3-5mg; Selenium trace (soil-dependent, typically 0.05-0.2mg). Vitamins in fresh leaf: Vitamin C 150-250mg (largely destroyed by withering and oxidation in black tea processing); Vitamin K 500-1000mcg; B-vitamins including riboflavin (B2) ~0.8mg and folate ~70mcg. Brewed cup (200ml black tea) delivers approximately: caffeine 40-70mg, theaflavins 15-40mg, thearubigins 100-200mg, fluoride 0.1-0.3mg, manganese 0.5-1mg; most catechins are oxidized and bioavailability of remaining polyphenols is moderate (10-30%), influenced by milk addition (casein binding reduces polyphenol absorption) and brewing temperature. Tannin content: 10-20% dry weight, contributing to astringency and reduced iron bioavailability when consumed with meals.

## Dosage & Preparation

No clinically studied dosage ranges are available for assamica tea in extract, powder, or standardized forms. Traditional beverage use involves brewing leaves, but quantities have not been quantified in studies. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Safety data specific to assamica tea is unavailable due to lack of clinical research. General tea safety considerations may apply, including potential caffeine-related effects and rare cases of hepatotoxicity with concentrated extracts. Catechins can theoretically interact with iron absorption and certain medications. Pregnant women should exercise caution due to insufficient safety data for this specific variety.

## Scientific Research

Search results provide no human clinical trials, RCTs, or meta-analyses specific to Camellia sinensis var. assamica. While general evidence on tea (C. sinensis) exists for catechins and caffeine effects, no studies distinguish assamica from sinensis varieties, and no PubMed PMIDs are available in the results.

## Historical & Cultural Context

Assamica tea has been cultivated in Assam, India, and Southeast Asia for centuries, primarily for strong black teas with malty, bold flavors used in blends like English Breakfast. In Indian and regional traditions, it supports daily beverage consumption for invigoration, with processing methods like CTC (Crush, Tear, Curl) enhancing strength for milk tea.

## Synergistic Combinations

Green tea extract, L-theanine, Vitamin C, Quercetin, EGCG

## Frequently Asked Questions

### What makes assamica tea different from other green teas?

Assamica tea has a dense spongy mesophyll tissue structure that contains particularly high concentrations of catechins. However, no comparative studies have measured the actual health differences between assamica and other Camellia sinensis varieties.

### Are there any studies on assamica tea health benefits?

No clinical studies have specifically examined assamica tea's health effects. Only chemical analysis of its catechin content has been conducted, while health benefits remain theoretical based on its phytochemical profile.

### How much catechin does assamica tea contain?

While assamica tea shows high catechin concentrations in laboratory analysis of its mesophyll tissue, specific quantitative data on catechin content per serving has not been published. The actual bioavailable amounts remain unknown.

### Can assamica tea help with weight loss?

There is no clinical evidence supporting weight loss benefits from assamica tea specifically. While other Camellia sinensis varieties have shown modest metabolic effects, these findings cannot be extrapolated to the assamica cultivar without dedicated research.

### Is assamica tea safe to drink daily?

Daily safety of assamica tea has not been established through clinical research. While traditional use suggests general tolerability, the lack of variety-specific safety data means potential risks or optimal dosing remain unknown for this particular cultivar.

### Is assamica tea safe for pregnant women or children?

Assamica tea contains caffeine, which pregnant women are typically advised to limit to 200mg daily, so moderate consumption may be appropriate but should be discussed with a healthcare provider. For children, assamica tea is generally safe in small amounts, though the high caffeine content means it should not replace water as a primary beverage. Pregnant women and parents should consult with their doctor about appropriate intake levels for their specific situation.

### How does assamica tea compare to assam tea, and are they the same thing?

Assamica (Camellia sinensis assamica) is the botanical subspecies native to the Assam region of India, while 'assam tea' refers to tea produced in the Assam region using any tea plant variety. Most authentic assam teas are made from the assamica cultivar, but the terms are not always interchangeable—assamica describes the plant genetics, while assam describes the geographic origin and production method. Assamica tea tends to be fuller-bodied and maltier than other Camellia sinensis variants due to the plant's larger leaves and growing conditions.

### Does assamica tea interact with blood thinners or blood pressure medications?

Assamica tea contains caffeine and polyphenols that may have mild anticoagulant properties, so individuals taking warfarin or other blood thinners should consult their healthcare provider about regular consumption. Caffeine in assamica tea can also modestly elevate blood pressure in some people, which may be relevant for those taking antihypertensive medications. Consistent daily intake rather than occasional use is more likely to produce interactions, so medical guidance is recommended for those on these medication classes.

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