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Science of Caffeine

  • 5 minute read

What is Caffeine?

Caffeine occurs naturally in foods, such as coffee, tea and cocoa and has a long history of use as a mild stimulant. 

One of caffeine’s primary actions in the human body is a stimulating effect on cognitive functions. Caffeine helps to improve concentration and increase alertness.

Studies shown moderate consumption of caffeine helps to enhance mental concentration, reduce fatigue, promote clarity and increase energy levels.

www.foodstandards.gov.au/consumer/prevention-of-foodborne-illness/caffeine

Responsible Use of Caffeine?

Caffeine is a stimulant, which increases activity in your brain and nervous system.
In small doses, caffeine can make you feel refreshed, focused and more alert.

The recommended dosage of No-Doz is one tablet. You should only take one No-Doz tablet in a 3 hour period. Individual responses can vary depending on such factors as age, weight, and tolerance to caffeine. No more than 6 No-Doz tablets should be taken within 24 hours and no more than 5 No-Doz Plus tablets should be taken within 24 hours.

When using caffeine tablets such as No-Doz you should

  • Not exceed the recommended dosage.
  • Limit the use of caffeine containing medications, foods or beverages because too much caffeine may cause nervousness, irritability, sleeplessness and, occasionally, rapid heart beat.
  • Drive responsibly. Caffeine is not a substitute for sleep. Remember to rest every 2 hours and avoid driving if you are so tired that safety is compromised.

    Always read the label and follow the directions for use.

References

  1. Peeling P, Dawson B. Influence of caffeine ingestion on perceived mood states, concentration, and arousal levels during a 75-min university lecture. Adv Physiol Educ. 2007;31:332-335
  2. Bordeaux B, Lieberman HR, Benefits and risks of caffeine and caffeinated beverages, UpToDate July 2023
  3. Biggs SN, et al, Perception of simulated driving performance after sleep restriction and caffeine. Journal of Psychosomatic Research 63 (2007) 573–577
  4. Einöther SJL, Giesbrecht T, Caffeine as an attention enhancer: reviewing existing assumptions. Psychopharmacology (2013) 225:251–274.
  5. Smith A, Effects of caffeine on human behavior. Food and Chemical Toxicology 40 (2002) 1243–1255
  6. Glade MJ. Caffeine-not just a stimulant. Nutrition. 2010;26:932-938
  7. Ker K, et al. Caffeine for the prevention of injuries and errors in shift workers. Cochrane Database of Systematic Reviews 2010, Issue 5. Art. No.: CD008508.
  8. Lieberman HR et al. The effects of low doses of caffeine on human performance and mood. Psychopharmacology (1987) 92:308 312
  9. Nehlig A, Is Caffeine a Cognitive Enhancer? Journal of Alzheimer’s Disease 20 (2010) S85–S94

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Always read the label and follow the directions for use.

No-Doz® Plus

24 Tablets

  • Helps relieve mental fatigue and drowsiness
  • Keeping you bright and alert
  • Contains 100mg of caffeine plus 10mg of Vitamin B1 and 10mg of Vitamin B3 in a glucose base
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No-Doz® Awakeners

24 or 100 Tablets

  • Helps relieve mental fatigue and drowsiness
  • Keeping you bright and alert
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