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Each record is a registered study, a systematic-review registration or a publication. A registered or ongoing study is not a finding, and animal or cell research does not show an effect in people. The same study can appear under more than one subject, so the number of records is not a count of independent studies. You can also search an exact DOI, PubMed ID, NCT or CRD number. How to read these records.

5 study records (showing up to 30 per record type)

• Registered trial NCT01421979 Completed (results not assessed here)
  Clinical Trial on the Effects of Caffeine and Taurine From Energy Drinks (EDs) to Parameters of the Cardiovascular System in Humans
  Condition or outcome area: Cardiovascular Risk
  2011-04 · Subject: Tatarine; Taurine · open the ingredient record · ClinicalTrials.gov
• Registered trial NCT01421979 Completed (results not assessed here)
  Clinical Trial on the Effects of Caffeine and Taurine From Energy Drinks (EDs) to Parameters of the Cardiovascular System in Humans
  Condition or outcome area: Cardiovascular Risk
  2011-04 · Subject: Caffeine; NCGC00015208-02; DHCplus; KBio2_001781; W222402_ALDRICH; NINDS_000730; EINECS 200-362-1; Spectrum5_000423; BSPBio_001921; KBio1_000730 · open the ingredient record · ClinicalTrials.gov
• Systematic review registration CRD42023417368 Registered protocol, no results here: Review Ongoing
  The relationship between energy drinks and psychosis: A systematic review
  Condition or outcome area: Psychosis; either new onset or relapse of primary psychotic illness eg schizophrenia
  2023-05-19 · Subject: Caffeine; 58-08-2; Guaranine; 1,3,7-Trimethylxanthine; Methyltheobromine; Theine; Thein; Cafeina; Koffein; Mateina · open the ingredient record
• Systematic review registration CRD42015023582 Registered protocol, no results here: status not recorded
  A systematic review of school-based interventions aiming to decrease consumption of sugar-sweetened beverages among teenagers
  Condition or outcome area: Studies conducted among teenagers and reporting school-based intervention results, aimed at decreasing sugar-sweetened beverages consumption, that can be converted into effect sizes will be eligible for inclusion. Sugar-sweetened beverages include soft drinks, fruit drinks or cocktails, energetic or sport drinks, energy drinks, iced teas and vitamin waters.
  Subject: Saccharose; Sucrose; sucrose; 57-50-1; sugar; Table sugar; Cane sugar; White sugar; D-Sucrose; Rohrzucker · open the ingredient record
• Systematic review registration CRD42020196488 Registered protocol, no results here: Review Completed not published
  The effects of caffeine on voice-related measures: a systematic review
  Condition or outcome area: Hydration is essential for voice production. Systemic and superficial dehydration may adversely affect vocal fold mucosa, resulting to increased viscosity and consequently to increased vocal effort. Caffeine is considered as one of the most consumed psychoactive substances in the world and can be found in a variety of products (e.g. coffee, tea, energy drinks). One of the most common effects of caffeine is diuresis, which can lead in alternation of hydration status. As a dehydrating agent, it is
  2020-08-01 · Subject: Caffeine; 58-08-2; Guaranine; 1,3,7-Trimethylxanthine; Methyltheobromine; Theine; Thein; Cafeina; Koffein; Mateina · open the ingredient record