Table 3.

Components of successful intervention programs.

Program Name Reference	Intervention	Outcome Measures
		Anthropometrics	Nutrition Behavior	Other
Diet only
Diatrofi Dalma et al., 2018 [26]	Intervention A: daily lunch bag Intervention B: food voucher		↑ positive food preferences at school	↑ self-organization
H2NOE Water Schools Griebler et al., 2021 [23]	Free refillable water bottle and workshops		↑ water consumption
HKCC Irwin et al., 2019 [24]	Education programs about water and SSB consumption and water bottle filling stations		↑ water consumption ↓ SSB consumption	↑ nutrition knowledge
ACTION Winzer et al., 2021 [25]	Diet and hydration sessions		↓ free sugar intake
Diet and PA
POIBA Ariza et al., 2019 [31]	Evaluation of body weight, diet and PA sessions Family workshops Subsidized fees for extracurricular sports for some families	↓ Incidence of obesity
POIBA Sánchez-Martínez et al., 2021 [32]		↓ Incidence of obesity
- Altay et al., 2020 [37]	Evaluation of body weight, healthy lifestyle sessions, workshops and booklets		↑ breakfast consumption	↑ self-efficacy
Health Promotion Intervention to Improve Diet Quality in Children Rosário et al., 2017 [35]	Interactive overweight and obesity prevention, diet, PA, hydration and cooking sessions Sessions delivered by trained teachers who took the same sessions		↑ vegetable adequacy ↑ sodium moderation
SMS Weber et al., 2017 [34]	2 additional exercise lessons weekly from qualified trainers and 10 nutrition lessons per school year	NS BMI, muscle and fat mass, and percentage body fat	NS changes in self-reported food consumption	↑ physical fitness and motor skills
HHP Pablos et al., 2018 [33]	PA sessions and activities Interactive healthy habits sessions Sessions delivered by trained teachers Worksheet completion about healthy habits Workshops for families and teachers	↑ prevalence for BMI according to level	↑ proper breakfast consumption ↑ better diet quality	↓ glucose ↓ TAG ↓ BP ↑ VO2max
Project Spraoi Merrotsy et al., 2019 [36]	PA and nutrition sessions and PA classes	↓ waist-to-height ratio (only 10-year-old children)	↑ fiber intake (only 6-year-old boys)	↓ systolic and diastolic BP (only 10-year-old children)
HPSF Bartelink et al., 2019 [38,39]	Full HPSF: free mid-morning snack and lunch every day, structured PA sessions and cultural activities, water bottles Partial HPSF: structured PA sessions and cultural activities	Full HPSF ↑ healthy dietary behaviors ↑ school water consumption Partial HPSF ↓ unhealthy dietary behaviors		Full HPSF ↓ time spent sedentary ↑ time in light PA ↓ total time spent in both PA and sedentary behaviors
			At school ↑ water consumption (full HPSF)	At school ↓ time spent sedentary ↑ time in light PA and MVPA increased (full and partial HPSF) At home ↓ time spent in light PA (partial HPSF)

BMI: body mass index, BP: blood pressure, MVPA: moderate-to-vigorous PA, NS: non-significant, PA: physical activity, SSBs: sugar-sweetened beverages, TAG: triacylglycerides, VO_2max: maximal oxygen uptake.