Malmesbury School has been awarded Healthy School status for the next three years.
Teacher Charlotte Thompson said the school is proud of its achievement.
"The programme isn't just about physical health, it's about good health and happiness inside and out," she said.
"We have been awarded because of the extra-curricular activities we offer, our Learning to Learn programme and the strength of student voice in school."
The National Healthy Schools Programme is a long-term initiative to help young people and schools improve students' well-being.
The idea is that schools help children to reach their potential by building on a solid foundation of health.
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