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Introduction: the consumption of non-nutritive sweeteners (NNS) has increased. Recent studies have reported possible metabolic effects of NNS, and this may influence the perception regarding their consumption in the general population and health professionals. Objective: to describe and compare the beliefs about NNS in consumers, non-consumers, and health professionals; and to explore the reasons and opinions of health professionals for recommending or not their consumption. Methods: surveys were applied to 100 consumers, 100 non-consumers and 100 health professionals (dietitians and physicians) to evaluate a positive, negative, or neutral attitude towards certain beliefs regarding NNS, including the information they have, safety, price, side effects and taste. In addition, the opinion of health professionals for recommending or not the consumption of NNS and the related reasons was evaluated. Results: statistically significant differences regarding the safety, side effects and taste of NNS were found between the three groups (p < 0.01). The most frequent opinion of health professionals (48 %) is that NNS should be limited, used as a transition and in certain patients. Consumers tend to have a more positive opinion about NNS except for the price, non-consumers have a more neutral position except for taste, and health professionals have a more negative perception of NNS in all aspects. Conclusions: the beliefs regarding NNS differed among the studied groups, which might influence their consumption or recommendation of its use. [ABSTRACT FROM AUTHOR]

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Objective: We developed a novel non-insulin-based fasting score to evaluate insulin sensitivity validated against the euglycemic-hyperinsulinemic clamp (EHC). We also evaluated its correlation with ectopic fact accumulation and its capacity to predict incident type 2 diabetes mellitus (T2D). Design and methods: The discovery sample was composed by 125 subjects (57 without and 68 with T2D) that underwent an EHC. We defined METS-IR as Ln((2*G0)+TG0)*BMI)/(Ln(HDL-c)) (G0: fasting glucose, TG0: fasting triglycerides, BMI: body mass index, HDL-c: high-density lipoprotein cholesterol), and compared its diagnostic performance against the M-value adjusted by fat-free mass (MFFM) obtained by an EHC. METS-IR was validated in a sample with EHC data, a sample with modified frequently sampled intravenous glucose tolerance test (FSIVGTT) data and a large cohort against HOMA-IR. We evaluated the correlation of the score with intrahepatic and intrapancreatic fat measured using magnetic resonance spectroscopy. Subsequently, we evaluated its ability to predict incident T2D cases in a prospective validation cohort of 6144 subjects. Results: METS-IR demonstrated the better correlation with the MFFM (1 = -0.622, P < 0.001) and diagnostic performance to detect impaired insulin sensitivity compared to both EHC (AUC: 0.84, 95% CI: 0.78-0.90) and the SI index obtained from the FSIVGTT (AUC: 0.67, 95% CI: 0.53-0.81). METS-IR significantly correlated with intravisceral, intrahepatic and intrapancreatic fat and fasting insulin levels (P < 0.001). After a two-year follow-up, subjects with METS-IR in the highest quartile (>50.39) had the highest adjusted risk to develop T2D (HR: 3.91, 95% CI: 2.25-6.81). Furthermore, subjects with incident T2D had higher baseline METS-IR compared to healthy controls (50.2 ± 10.2 vs 44.7 ± 9.2, P < 0.001). Conclusion: METS-IR is a novel score to evaluate cardiometabolic risk in healthy and at-risk subjects and a promising tool for screening of insulin sensitivity. [ABSTRACT FROM AUTHOR]

Objective: To estimate the prevalence of non-nutritive sweeteners (NNS) consumption in a sample of patients with diabetes., Material and Methods: We applied two questionnaires, one of food frequency adapted to products containing NNS and the other of beliefs related to NNS. The prevalence of NNS consumption was determined and correlated with the body mass index, energy and sugar consumption, waist circumference, glycated hemoglobin, triglycerides, diabetes type, education and socioeconomic status., Results: The prevalence of NNS consumption was 96%; the consumption was greater in men and in patients with type 1 diabetes. A negative correlation was found between the consumption and age and a positive correlation with glycated hemoglobin and education., Conclusions: The prevalence of NNS consumption is high due to the great availability of products in the market.