Efeito de diferentes condutas dietéticas durante o turno noturno de trabalho sobre a distribuição do consumo alimentar nas refeições seguintes

Abstract

Shift work is in increasing demand due to the need for uninterrupted operation of certain types of services. As a result of non-standard work, the consumption and distribution of meals throughout the day may change. The objective of the present study was to evaluate the effect of different nutritional behaviors applied during the night work on the distribution of food intake of subsequent meals. Fourteen night workers with a mean age of 41 years participated in the randomized controlled crossover study. Participants underwent two different nutritional conducts performed during the work shift (01: 00h) and separated by a seven-day washout period: one with a high protein meal (55% carbohydrate, 25% lipid and 40% protein) and the other with normoproteic meal (60% carbohydrate, 25% lipid and 15% protein). Participants were instructed to fill out a food register to assess the consumption and distribution of subsequent meals. The percentage carbohydrate consumption was higher after the condition with a high protein meal compared to the condition with a normal protein meal, regardless of the time of day (p = 0.044). For energy and other macronutrients no significant differences were found. Therefore, a hyperproteic meal consumed at work seems to influence carbohydrate consumption as a percentage of subsequent meals regardless of the time of day. However, further studies are needed to better elucidate this issue