Data from large , epidemiologic studies support the existence of an association between  artificially-sweetened beverage  consumption and weight gain in children .
Epidemiological data have demonstrated an association between artificial sweetener use and  weight gain .
Evidence of a causal relationship linking artificial sweetener use to weight gain and other metabolic health effects is limited .
However , recent animal studies provide intriguing information that supports an active metabolic role of artificial sweeteners .
This systematic review examines the current literature on  artificial sweetener consumption in children and its health effects .
Habitual caffeine intake and the risk of hypertension in women.
CONTEXT Caffeine acutely increases blood pressure , but the association between habitual consumption of caffeinated beverages and incident hypertension is uncertain . OBJECTIVE To examine the association between caffeine intake and incident hypertension in women . DESIGN , SETTING , AND PARTICIPANTS Prospect i ve cohort study conducted in the Nurses ' Health Studies ( NHSs ) I and II of 155,594 US women free from physician-diagnosed hypertension followed up over 12 years ( 1990 - 1991 to 2002 - 2003 question naires ) .  Caffeine intake and possible confounders were ascertained from regularly administered question naires . We also tested the associations with types of caffeinated beverages . MAIN OUTCOME MEASURE Incident physician-diagnosed hypertension . RESULTS During follow-up , 19,541 incident cases of physician-diagnosed hypertension were reported in NHS I and 13,536 in NHS II . In both cohorts , no linear association between  caffeine  consumption and risk of incident hypertension was observed after multivariate adjustment ( NHS I , P for trend = .29 ; NHS II , P for trend = .53 ) . Using categorical analysis , an inverse U-shaped association between caffeine consumption and incident hypertension was found . Compared with participants in the lowest quintile of caffeine consumption , those in the third quintile had a 13 % and 12 % increased risk of hypertension , respectively ( 95 % confidence interval in NHS I , 8%-18 % ; in NHS II , 6%-18 % ) . When study ing individual classes of caffeinated beverages , habitual coffee consumption was not associated with increased risk of hypertension . By contrast , consumption of cola beverages was associated with an increased risk of hypertension , independent of whether it was sugared or diet cola ( P for trend < .001 ) . CONCLUSION No linear association between caffeine consumption and incident hypertension was found . Even though habitual coffee consumption was not associated with an increased risk of hypertension , consumption of sugared or diet cola was associated with it . Further research to eluci date the role of cola beverages in hypertension is warranted
Data from large , epidemiologic studies support the existence of an association between  artificially-sweetened beverage  consumption and weight gain in children .
Epidemiological data have demonstrated an association between artificial sweetener use and  weight gain .
Evidence of a causal relationship linking artificial sweetener use to weight gain and other metabolic health effects is limited .
However , recent animal studies provide intriguing information that supports an active metabolic role of artificial sweeteners .
This systematic review examines the current literature on  artificial sweetener consumption in children and its health effects .