Caffeine content of beverages as consumed.

RM Gilbert, JA Marshman, M Schwieder… - Canadian Medical …, 1976 - ncbi.nlm.nih.gov
Quantitative analysis of beverages prepared at home by staff of the Addiction Research
Foundation revealed a lower and much more variable caffeine content of both tea and coffee …

Caffeine content of common beverages.

ML Bunker, M McWilliams - Journal of the American Dietetic …, 1979 - europepmc.org
Tea, coffee, carbonated and chocolate beverages were analyzed for caffeine, and results
compared in terms of usual serving sizes. Significant differences in caffeine levels were …

A systematic survey of caffeine intake in Vermont.

JR Hughes, AH Oliveto - Experimental and clinical …, 1997 - psycnet.apa.org
Detailed data were collected on lifetime caffeine intake from 202 Vermont residents using a
random-digit dial telephone survey. The sample appeared representative and test–retest …

Physiologic and psychotropic effects of caffeine on man. A review.

PE Stephenson - Journal of the American Dietetic Association, 1977 - europepmc.org
Caffeine, in substantive amounts, is frequently taken by the clinical or hospitalized patient.
Caffeine content of coffees, teas, cola drinks, cocoa, and drugs is summarized. Systems and …

Caffeine consumption.

RM Gilbert - Progress in clinical and biological research, 1984 - europepmc.org
This chapter provides details about the production, trade, and consumption of caffeine,
which is probably the world's most widely used drug. The focus is on caffeine derived from …

Variability in caffeine consumption from coffee and tea: possible significance for epidemiological studies

B Stavric, R Klassen, B Watkinson, K Karpinski… - Food and chemical …, 1988 - Elsevier
Five surveys, using a previously developed high-performance liquid chromatography
procedure to measure caffeine concentrations, indicated great variations in the …

Psychotropic effects of caffeine in man. IV. Quantitative and qualitative differences associated with habituation to coffee

A Goldstein, S Kaizer, O Whitby - Clinical Pharmacology & …, 1969 - Wiley Online Library
Caffeine (150 and 300 mg.) and placebo were administered in decaffeinated coffee on 9
successive mornings (each treatment 3 times) to 18 housewives who were not coffee …

The effects of caffeine on various body systems: a review.

TK Leonard, RR Watson, ME Mohs - Journal of the American …, 1987 - europepmc.org
Caffeine is the most widely consumed drug in Western society. The intake of caffeine-
containing beverages in many adults and children often reaches levels that can induce …

Assessment of caffeine exposure: caffeine content of beverages, caffeine intake, and plasma concentrations of methylxanthines

A Lelo, JO Miners, R Robson… - Clinical Pharmacology & …, 1986 - Wiley Online Library
The caffeine content of all tea or coffee beverages consumed by 17 healthy adults over 24
hours was measured. Plasma caffeine, theophylline, theobromine, and paraxanthine …

Psychotropic effects of caffeine in man. III. A questionnaire survey of coffee drinking and its effects in a group of housewives

A Goldstein, S Kaizer - Clinical pharmacology & therapeutics, 1969 - Wiley Online Library
By means of a questionnaire, information was gathered about coffee drinking and its effects
in 239 young housewives. The group was divided into roughly equal parts with respect to …