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Comparisons

Compare the categories

Pick two product categories to see them side by side. Differences are highlighted.

Feature
Green Tea
Coffee
Composition
Key ingredient
Camellia sinensis leaves (unoxidized)
Source: EFSA
Roasted Coffea arabica or robusta beans
Source: EFSA
Main active substances
Caffeine, EGCG and other catechins, L-theanine
Source: PubMed
Caffeine, chlorogenic acids
Source: PubMed
Additives
None in pure form
Source: EFSA
None in pure brewed coffee
Source: EFSA
Processing level
Low–Moderate
Source: PubMed
Moderate
Source: PubMed
Quality features
Production method
Steaming or pan-firing, rolling, drying
Source: FAO
Roasting and brewing
Source: FAO
Raw material grade
Whole leaf to powdered (matcha)
Source: FAO
Commodity to specialty
Source: FAO
Taste profile
Grassy, vegetal, sometimes umami
Source: PubMed
Bitter, roasted, sometimes fruity
Source: PubMed
Shelf life
~1 year sealed
Source: PubMed
Months for roasted beans
Source: PubMed
Health-related indicators
Calories (per cup, plain)
~2 kcal
Source: EFSA
~2 kcal
Source: EFSA
Caffeine
~20–45 mg / cup
Source: EFSA
~80–120 mg / cup
Source: EFSA
Sugar content
0 g (unsweetened)
Source: EFSA
0 g (unsweetened)
Source: EFSA
Potential benefits
May be associated with antioxidant intake
[source needed]
Source: WHO
Associated with alertness; mixed evidence on long-term outcomes
Source: WHO
Potential risks
High-dose extracts linked to liver concerns
Source: WHO
Excess intake may cause sleep disruption and anxiety
Source: WHO

Conclusions from recognized authorities

ArenaH does not draw its own conclusions. Below are positions stated by internationally recognized bodies specifically about how these categories compare.

  • World Health Organization (WHO)

    WHO publishes topic pages and fact sheets that compare consumer product categories on health-relevant criteria. Refer to the topic page for the current public-health position.

  • European Food Safety Authority (EFSA)

    EFSA provides scientific opinions comparing food and feed categories on composition, additives and contaminants relevant to consumer choice.

  • U.S. Food and Drug Administration (FDA)

    The FDA reviews comparative safety, labelling and health-related claims for product categories in the United States.

Similarities

Both categories belong to the broader consumer goods landscape and share common regulatory frameworks for food/product labeling where applicable. Use the highlighted rows in the table to spot the differences.

Neutral summary

Green Tea and Coffee differ across composition, processing and consumer experience. Neither comparison is a recommendation — consult labels, local regulation, and qualified professionals for personal decisions.

ArenaH provides educational and informational comparisons only. The content is not medical, legal, financial, or technical advice. Users should consult qualified professionals or official sources before making decisions related to health, safety, law, or major purchases.