SA JOURNAL OF DIABETES & VASCULAR DISEASE
RESEARCH ARTICLE
VOLUME 15 NUMBER 2 • NOVEMBER 2018
63
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Artificial sweeteners found to be toxic to gut microbes
F
DA-approved artificial sweeteners and
sport supplements were found to be
toxic to digestive gut microbes, according
to a study by researchers at Ben-Gurion
University of the Negev (BGU) in Israel
and Nanyang Technological University in
Singapore.
The collaborative study indicated
relative toxicity of six artificial sweeteners
(aspartame,
sucralose,
saccharine,
neotame, advantame, and acesulfame
potassium-k) and 10 sport supplements
containing these artificial sweeteners.
The bacteria found in the digestive
system became toxic when exposed to
concentrations of only one mg/ml of the
artificial sweeteners.
‘We modified bioluminescent
E coli
bacteria, which luminesce when they
detect toxicants and act as a sensing
model representative of the complex
microbial system,’ says Professor
Ariel Kushmaro, John A Ungar chair
in biotechnology in the Avram and
Stella Goldstein-Goren department of
biotechnology engineering, and member
of the Ilse Katz Institute for Nanoscale
Science and Technology and the National
Institute for Biotechnology in the Negev.
‘This is further evidence that consumption
of artificial sweeteners adversely affects
gut microbial activity which can cause a
wide range of health issues.’
Artificial sweeteners are used in
countless food products and soft drinks
with reduced sugar content. Many
people consume this added ingredient
without their knowledge. Moreover,
artificial sweeteners have been identified
as emerging environmental pollutants,
and can be found in drinking and surface
water, and groundwater aquifers.
‘The results of this study might help
in understanding the relative toxicity of
artificial sweeteners and the potential
of negative effects on the gut microbial
community as well as the environment.
Furthermore, the tested bio-luminescent
bacterial panel can potentially be used
for detecting artificial sweeteners in the
environment,’ says Kushmaro.
Source: Medical Brief 2018