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Sodium benzoate-rich beverage consumption is associated with increased reporting of ADHD symptoms in college students: a pilot investigation.

Journal of attention disorders (2012-04-28)
Bonnie L Beezhold, Carol S Johnston, Kathleen A Nochta
ABSTRACT

Sodium benzoate, a common additive in popular beverages, has recently been linked to ADHD. This research examined the relationship between sodium benzoate-rich beverage ingestion and symptoms related to ADHD in college students. College students (N = 475) completed an anonymous survey in class in fall 2010. The survey assessed recent intake of a noninclusive list of sodium benzoate-rich beverages and ADHD-related symptoms using a validated screener. Sodium benzoate-rich beverage intake was significantly associated with ADHD-related symptoms (p = .001), and significance was retained after controlling for covariates. Students scoring ≥4 on the screener (scores that may be consistent with ADHD; n = 67) reported higher intakes (34.9 ± 4.4 servings/month) than the remainder of the sample (16.7 ± 1.1 servings/month). These data suggest that a high intake of sodium benzoate-rich beverages may contribute to ADHD-related symptoms in college students and warrants further investigation.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Sodium benzoate, ReagentPlus®, 99%
Sigma-Aldrich
Sodium benzoate, purum p.a., ≥99.0% (NT)
Sigma-Aldrich
Sodium benzoate, puriss., meets analytical specification of Ph. Eur., BP, FCC, E211, 99.0-100.5% (calc. to the dried substance), powder
Sigma-Aldrich
Sodium benzoate, BioXtra, ≥99.5%
Supelco
Sodium benzoate, Pharmaceutical Secondary Standard; Certified Reference Material
USP
Sodium benzoate, United States Pharmacopeia (USP) Reference Standard