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WeightCited

Caffeine
Caffeine

thermogenic

다른 이름: 1,3,7-Trimethylxanthine, Caffeine Anhydrous, Guarana (caffeine source)

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About

A naturally occurring xanthine alkaloid and the world's most widely consumed psychoactive substance. Caffeine supports metabolic rate and fat oxidation through sympathetic nervous system activation. Extensively studied in clinical trials for its role in energy expenditure and exercise performance.

How It Works

Adenosine receptor antagonist that stimulates the sympathetic nervous system, increasing catecholamine release (epinephrine, norepinephrine). This activates hormone-sensitive lipase, mobilizing fatty acids from adipose tissue, and increases resting metabolic rate by 3-11%.

Evidence For Conditions

Side Effects

  • Insomnia
  • Anxiety and jitteriness
  • Increased heart rate
  • Digestive upset
  • Tolerance development over 1-2 weeks

Drug & Supplement Interactions

  • Adenosine receptor agonists
  • Lithium (reduced clearance)
  • Theophylline
  • MAOIs
  • Other stimulants (additive effects)

복용 중인 모든 건강기능식품에 대해 반드시 의료 전문가에게 알리십시오.

Related Ingredients

FDA 면책 조항: 이 내용은 미국 식품의약국(FDA)의 평가를 받지 않았습니다. 이 웹사이트의 제품 및 정보는 질병의 진단, 치료, 완치 또는 예방을 목적으로 하지 않습니다. 제시된 근거 등급은 발표된 동료 심사 연구에 대한 우리의 분석에 기반하며, 의학적 조언을 구성하지 않습니다. 건강기능식품 복용을 시작하기 전에 반드시 의료 전문가와 상담하십시오.