Banca de DEFESA: NATALIA CARLOS MAIA AMORIM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NATALIA CARLOS MAIA AMORIM
DATE: 04/03/2020
TIME: 14:00
LOCAL: Sala de aula 06 do Departamento de Nutrição
TITLE:

IMPACT OF THE CONSUMPTION OF ULTRAPROCESSED FOODS IN THE DIETETIC INTAKE AND PROFILE OF VITAMIN E IN THE MILK AND SERUM OF LACTATING WOMEN

KEY WORDS:

Food Processing, Food Consumption, Breast Milk, Alpha-Tocopherol, Lactation, Breastfeeding.

PAGES: 100
BIG AREA: Ciências da Saúde
AREA: Nutrição
SUMMARY:

The consumption of ultra-processed foods can lead to the onset of chronic non-communicable diseases, inadequate intake of micronutrients, among other health problems. Therefore, it is important to assess this consumption during lactation and its impact on milk composition and maternal nutritional status, as maternal nutrition must ensure an adequate nutritional composition of milk, avoiding the establishment of deficiencies, such as vitamin E deficiency (VED). Thus, this study aimed to evaluate the consumption of ultra-processed foods and its relationship with dietary intake and vitamin E concentration in milk and serum of lactating women. The study was cross-sectional with 294 lactating women attended at university hospitals in Rio Grande do Norte, with at least 30 days postpartum. Blood and breast milk collection was made in fasting and the concentration of vitamin E (alpha-tocopherol) in the samples was analyzed by High Performance Liquid Chromatography (HPLC). The vitamin E profile of breast milk was evaluated considering the amount of the vitamin in an estimated volume of daily consumption (780 mL/day) and compared to the recommendation for infants (4 mg/day). The women's food consumption was obtained by three 24-hour recalls and the foods were classified according to NOVA into unprocessed or minimally processed foods, processed culinary ingredients, processed foods and ultra-processed foods. Dietary intake of energy, total fat, saturated fat, monounsaturated fat, polyunsaturated fat and vitamin E was also analyzed. Participants were divided into tertiles according to the energy contribution of ultra-processed foods. The Kruskal-Wallis test was used to compare the groups divided by the tertiles and a multiple linear regression test was performed, without and with adjustment for family income, to assess the relationship between the consumption of ultra-processed foods and the vitamin biomarkers. The consumption of unprocessed or minimally processed foods contributed with 51% of energy intake and ultra-processed foods with 16%. Unprocessed or minimally processed foods contributed most to vitamin E consumption (44%). Alpha-tocopherol in maternal serum was 1144 (344) μg/dL, with 5% (n=11) VED (<517 μg/dL), and in breast milk, mean values of 362 (170) μg/dL were found, being 78% below the recommended daily consumption by infants. Higher caloric intake was observed in women with a higher tertile of consumption of ultra-processed foods (p<0.05). The increase in the share of ultra-processed foods in the diet was associated with lower serum alpha-tocopherol concentrations (β=-0.166, p=0.005), the inadequate vitamin E profile of breast milk (β=-0.137, p=0.021) and the lower consumption of the vitamin from other NOVA groups. The main findings of this study revealed a negative impact of the consumption of ultra-processed foods on the profile of vitamin E biomarkers in lactating women, warning of the possible reduction in circulating levels of the vitamin and its supply to infants. Thus, the current dietary guidelines for the lactating population are reinforced, with regard to avoiding the consumption of these foods, ensuring the promotion of an adequate and healthy diet, and avoiding VED during this period of life.

BANKING MEMBERS:
Externa à Instituição - INÊS RUGANI RIBEIRO DE CASTRO
Externa ao Programa - 1837366 - DANIELLE SOARES BEZERRA
Presidente - 2578592 - KARLA DANIELLY DA SILVA RIBEIRO RODRIGUES
Externa à Instituição - LAURA CAMILA PEREIRA LIBERALINO