What are the side effects of caffeine anhydrous?

- Jitters & Anxiety: Common above 300 mg, especially in caffeine-naive individuals.

⚡Energy

caffeine anhydrous

Q: What is the recommended dosage of caffeine anhydrous?

Key Insight: Research suggests 3–6 mg/kg body weight is the optimal range. For a 180 lb (82 kg) person, that is approximately 250–490 mg.

Caffeine anhydrous stimulates the central nervous system, increasing alertness and reducing perceived exertion.

Clinical Dose: 250mgFound in: 100 products

What Does Caffeine Anhydrous Do?

Caffeine anhydrous is the most widely studied ergogenic aid in sports nutrition. It is a central nervous system stimulant that blocks adenosine receptors, reducing the perception of fatigue and increasing alertness.

Increased Energy & Alertness: Rapidly crosses the blood-brain barrier to promote wakefulness.
Enhanced Physical Performance: Shown to improve endurance, power output, and strength in clinical trials.
Fat Oxidation: Stimulates lipolysis, helping the body use fat as fuel during exercise.
Improved Reaction Time: Enhances cognitive processing speed and focus under fatigue.

Clinical vs. Gym Bro Dosing

Tier	Dose	Notes
Clinical Minimum	100–200 mg	Noticeable alertness, suitable for stimulant-sensitive users
Standard Effective	200–300 mg	The sweet spot for most athletes
High Performance	300–400 mg	Common in high-stim pre-workouts
Gym Bro Max	400+ mg	Diminishing returns, increased side effects

Key Insight: Research suggests 3–6 mg/kg body weight is the optimal range. For a 180 lb (82 kg) person, that is approximately 250–490 mg.

Side Effects & Warnings

Jitters & Anxiety: Common above 300 mg, especially in caffeine-naive individuals.
Insomnia: Caffeine has a half-life of ~5 hours. Avoid within 6 hours of bedtime.
Heart Rate Increase: Elevated resting heart rate and blood pressure at higher doses.
Tolerance: Regular use leads to reduced sensitivity. Cycling off for 1–2 weeks can restore effects.
Gastrointestinal Distress: Some users experience nausea or stomach discomfort on an empty stomach.

Contraindications: Individuals with heart conditions, anxiety disorders, or caffeine sensitivity should consult a physician.