Association between dietary carbohydrate intake quality and micronutrient intake adequacy in a Mediterranean cohort: the SUN (Seguimiento Universidad de Navarra) Project

• Published in: British journal of nutrition 2014-06, Vol.111 (11), p.2000-2009
• Main Authors: Zazpe, Itziar, Sánchez-Taínta, Ana, Santiago, Susana, de la Fuente-Arrillaga, Carmen, Bes-Rastrollo, Maira, Martínez, J. Alfredo, Martínez-González, Miguel Ángel
• Format: Article
• Language: English
• Subjects: Adult; Biological and medical sciences; Body Mass Index; Carbohydrates; Diet; Diet, Mediterranean; Dietary Carbohydrates - administration & dosage; Dietary Fats - administration & dosage; Dietary fiber; Dietary Fiber - administration & dosage; Dietary Surveys and Nutritional Epidemiology; Epidemiology; Feeding. Feeding behavior; Female; Folic acid; Follow-Up Studies; Food Quality; Fundamental and applied biological sciences. Psychology; Grain; Humans; Male; Mediterranean Region; Micronutrients - administration & dosage; Middle Aged; Nutrition; Nutrition Assessment; Nutritional Requirements; Prospective Studies; Public health; Regression analysis; Vertebrates: anatomy and physiology, studies on body, several organs or systems; Vitamins; Young Adult
• ISSN: 0007-1145; 1475-2662
• DOI: 10.1017/S0007114513004364

Epidemiological research confirms that the prevalence of suboptimal micronutrient intakes across Europe is an emerging concern in terms of public health. The aim of the present study was to investigate the association between a new index of carbohydrate (CHO) quality and micronutrient intake adequacy in the ‘Seguimiento Universidad de Navarra (SUN)’ cohort. The baseline assessment extended from 1999 to March 2012. We assessed 16 841 participants who completed a validated 136-item semi-quantitative FFQ at baseline. We created a new index to evaluate CHO quality for the following four criteria: dietary fibre intake; glycaemic index; whole grains:total grains ratio; solid CHO:total CHO ratio. The subjects were classified into quintiles according to this index. We evaluated the intakes of Zn, I, Se, Fe, Ca, K, P, Mg, Cr and vitamins B1, B2, B3, B6, B12, C, A, D, E and folic acid. The probability of intake adequacy was evaluated using the estimated average requirement cut-point approach and the probabilistic approach. Logistic regression analysis was used to assess the nutritional adequacy according to the CHO quality index (CQI). Participants in the highest quintile of CQI were found to have the lowest prevalence of inadequacy. A higher quality of CHO intake was found to be associated with a lower risk of nutritional inadequacy in comparison with the lowest quintile of CQI (adjusted OR 0·06, 95 % CI 0·02, 0·16; P for trend