Effects of a healthy food supply intervention in a military setting: positive changes in cereal, fat and sugar containing foods.

BACKGROUND: In Finland, all men are liable to military service and a clear majority completes service. The increasing prevalence of obesity also among soldiers concerns conscripts' food choices. Conscripts are served nutritionally planned regular main meals but individual choices take place in free-time eating. This study assesses the effects in conscripts' eating habits in an intervention targeting the supply of healthy foods available in the military setting. METHODS: Participants were 604 18-21-year old male conscripts of whom 242 belonged to Control Group and 362 to Intervention Group. Participants of Control Group were historical controls performing military service one year before Intervention Group. The intervention targeted selection, placement, and attractiveness of healthy foods in garrison refectories and soldier's home cafeterias, the two main food providers in the military. Dietary intake data was collected by self-administered questionnaire at three time points: before/beginning of military service (T0), 8 weeks (T1) and 6 months (T2) of military service. Outcome measures were food consumption frequencies and four dietary indexes (Cereal Index, Fruit and Vegetable Index, Fat Index and Sugar Index) developed to characterize the diet. Changes between study groups in outcome variables and in time were analysed by repeated-measures analysis of covariance. RESULTS: Significant (p < 0.05) intervention effects and time-intervention interactions mostly in favor of Intervention Group were found. In Intervention Group, Cereal Index was significantly higher at T2 and the overall level of porridges and cereals was higher during follow-up when comparing to Control Group. Also, the overall levels of Fat Index, potato chips, soft drinks and desserts as well as sweet pastries at T1 were significantly lower in Intervention Group. At the same time, Fruit and Vegetable Index and the level of fruit and berries were lower in Intervention Group during follow-up. CONCLUSIONS: In the military setting, healthier food choices can be promoted by intervening on the main food environments by improving the supply of healthy foods. However, impacting on conscripts' individual selection as fruit and vegetable consumption is more challenging.

Food choices and health during military service: increases in sugar- and fibre-containing foods and changes in anthropometric and clinical risk factors.

OBJECTIVE: To analyse changes in food choices, diet-related risk factors and their association during 6 months of military service. DESIGN: Longitudinal cohort study in Finland, where all men are liable to military service and a clear majority of each age group completes service. Dietary intake data were collected by self-administered questionnaire before and at 6 months of service. Three dietary indices based on food frequencies were developed to characterize the diet: Sugar Index, Fibre Index and Fat Index. Thirteen diet-related risk factors were measured at the beginning and at 6 months of service. SETTING: Military environment, two geographically distinct garrisons. SUBJECTS: Male conscripts aged 18-21 years (n 256) performing military service. RESULTS: During 6 months of service, positive changes concerned more frequent use of fibre-rich foods (P = 0·011), improved body composition (BMI, waist circumference, muscle mass, fat mass and percentage body fat, P ≤ 0·003 for all), decreased systolic blood pressure and increased HDL cholesterol (P < 0·001 for both). Negative changes concerned more frequent use of sugar-rich foods and increased total cholesterol, TAG and blood glucose (P < 0·001 for all). The consumption of fibre-rich foods was inversely associated with anthropometric risk factors at baseline and with sugar-rich foods at both time points. CONCLUSIONS: Despite more frequent consumption of sweet foods, military service with a unified, nutritionally planned diet, a controlled environment and high physical load has a positive effect on conscripts' health risk factors. The negative changes in blood lipids and glucose may reflect more varied free-time eating.

Quality of diet and food choices of Finnish young men: a sociodemographic and health behaviour approach.

OBJECTIVE: Eating habits of Finns have improved dramatically in 40 years. The proportion of fat in the diet has decreased and vegetable and fruit consumption increased. Knowledge of Finnish young men's dietary habits is limited. The aim was to assess food choices and quality of diet among young men and to analyse how background and health behaviour factors explain it. DESIGN: In 2007, data on eating habits, sociodemographic background factors and health behaviours of 17-21-year-old men (n 2905) entering military service were collected by self-administrated questionnaire. Two indexes - core food index (CFI) and extra food index (EFI) - were formed to describe daily and redundant snacking-type eating, respectively. Associations of background factors and health behaviours on the indexes were analysed by general linear modelling. RESULTS: In all, 13 % consumed fruits and berries daily and 8 % consumed vegetables, whereas 24 % consumed pizza and 19 % consumed hamburgers more than once a week. CFI increased with educational level (P < 0.001) and was explained by background and health behaviour (smoking, physical activity and eating breakfast). EFI was inversely associated with BMI (P < 0.001) and explained by health behaviour: (smoking, physical activity, drinking beer and eating breakfast). CONCLUSIONS: These results indicate that in early adulthood, eating habits cluster with other health behaviours among men. In this age group, education is associated with core food but not with extra food eating habits. Furthermore, seasonal variation is seen in both types of eating. When promoting healthy eating, a distinction between core foods and extra foods by using feasible indexes will be helpful in targeting the efforts.

Nutrient intake and food use of Finnish conscripts in garrison, on leave, and in encampment conditions.

BACKGROUND: 80% of Finnish men fill their civic duty and complete military service. Conscripts' dietary habits have been studied limitedly. OBJECTIVE: The aim was to determine conscripts' nutrient intake and food use in garrison, on leave, and in encampment conditions. METHODS: This study examined volunteer conscripts in: (1) garrison and leave conditions (n=47) and (2) encampment conditions (n=31). Data were collected using food diaries. RESULTS: The proportion of energy derived from fat was 32.9% at garrison and 36.5% at encampment and on leave. Saturated fat constituted 12.5 energy % at garrison, 15.0 energy % at encampment, and 15.3 energy % on leave. Sucrose intake was high at encampment (17.7 energy %) and on leave (13.0 energy %). Salt, vitamin, and mineral intakes exceeded national recommendations in all conditions. Fiber intakes did not reach recommendations. CONCLUSIONS: At garrison and encampment, nutrient intakes reached recommendations. In free time, conscripts favored energy-rich nutrient-poor foods, which warrants intervening and dietary education.