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WeightCited

Caffeine
Caffeine

thermogenic

También conocido como: 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)

Informe siempre a su profesional de salud sobre todos los suplementos que toma.Siempre informe a su profesional de salud sobre todos los suplementos que toma.

Related Ingredients

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.