Children’s energy requirements may vary during school and summer camp days. To evaluate energy balance during these two periods, seventy-eight children (45% females, 8–10 years) living in Parma, Italy, were enrolled in this observational study. Participants completed a 3-day food diary and wore an activity tracker for three consecutive days during a school- and a summer camp-week to estimate energy intake (EI) and energy expenditure (TEE). Height and body weight were measured at the beginning of each period to define children’s weight status. BMI and EI (school: 1692 ± 265 kcal/day; summer camp: 1738 ± 262 kcal/day) were similar during both periods. Both physical activity and TEE (summer camp: 1948 ± 312; school: 1704 ± 263 kcal/day) were higher during summer camp compared to school time. Therefore, energy balance was more negative during summer camp (−209 ± 366 kcal/day) compared to school time (−12 ± 331 kcal/day). Similar results were observed when males and females were analyzed separately but, comparing the sexes, males had a higher TEE and a more negative energy balance than females, during both periods. The results strongly suggest that an accurate evaluation of children’s energy balance, that considers both diet and physical activity, is needed when planning adequate diets for different situations.

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AbstractSpecific nutritional requirements should be cover during childhood to ensure proper growth. The daily energy need is defined as the number of calories necessary to satisfy the total energy expenditure in a healthy and active organism. Since children are more inclined to be physically active during summer, their energy expenditure may vary during school days respect to summer days and a proper energy intake should be planned during both periods.The primary aim of this study was to evaluate the energy balance during school days and summer camp days in primary school children living in the city of Parma (Italy), attending the Giocampus programme.Participants were asked to complete a 3-day weighed food diary and to wear an activity tracker for the same 3 consecutive days twice: within a school week and a summer camp week. Height and body weight were measured at the beginning of each assessment week and BMI was calculated to define the weight status through the IOTF gender- and age-related cut-offs for children BMI. The mean energy balance was estimated as the difference between the mean total energy expenditure (calculated multiplying the daily physical activity level by the basal metabolic rate from the Schofield's predictive equation) and the mean daily energy intakes (obtained through the Italian food database of the European Institute of Oncology).Fifty-five children (49% F, 51% M, 8–10 y) correctly completed the study. In both periods, the mean BMI corresponded to normal weight status, without significant differences between genders. Energy intake did not change significantly between the assessment periods or between sexes. As expected, the minutes of inactivity decreased during the summer camp period. Moreover, males were more active than females, but the increase in the total energy expenditure from school to summer camp, related to the increased physical activity, was significant in both sexes. Energy balance was negative in both assessment periods and it changed significantly from school to summer camp days, decreasing in both sexes but being more negative for boys than for girls.Our results underline the importance of providing children with meals nutritionally adequate and suggest that the energy content of children's meals should be increased during particular conditions, like a summer camp, and continuously monitored to assure an adequate energy intake to cover the energy requirements during both school and summer camp days.

Global Burden of Disease identifies the makeup of diets as a significant risk factor for mortality and morbidity, with 11 million deaths and 255 million disability-adjusted life years attributable to dietary risk factors. 690 million people lack sufficient food and economic projections suggest that COVID-19 pandemic may add an additional 83 to 132 million people to the ranks of the undernourished, as the outbreak has exacerbated the global food flaws and insufficiencies, impacting the most vulnerable populations. Diets and related food systems also contribute to significant environmental degradation and climate change. Demand for animal-source foods is also increasing, particularly in emerging economies, which entails risks for the environment. 1.3 billion tons of food are wasted globally yearly, utilizing 38% of total energy consumption in the global food system. The real cost of acquiring enough nutrient-rich food to meet national dietary guidelines for a healthy diet exceeds available income for ∼38% of the world's population. A balanced diet that meets food-based dietary guidelines calls for even larger quantities of more costly food groups than would be needed just for nutrient adequacy, owing to their many functional attributes beyond just the essential nutrients that they contain. Faced with this scenario, there is urgent need for an appropriate strategy to increase people's awareness of the relationship between specific food choices and health and to facilitate the educational environment on this issue. Actual examples of current strategies for communication and promotion of healthy and sustainable diets will be discussed. With awareness and knowledge, clear and precise information, a supportive social environment, available and accessible healthy and sustainable food items, and the implementation of related policies, individuals have a great potential to achieve healthiness and environmental sustainability by choosing healthier and more sustainable foods.