Dietary sodium reduction among students: feasibility and acceptance

Area of Science:

• Nutrition Science
• Public Health
• Dietary Interventions

Background:

• High sodium intake is a significant public health concern, particularly among adolescents.
• Dietary habits established in youth can have long-term health consequences.
• School environments play a crucial role in shaping students' dietary patterns.

Purpose of the Study:

• To assess the feasibility and impact of reducing sodium content in food prepared for a boarding high school.
• To evaluate the acceptability of reduced-sodium food options among students.
• To quantify the effect of dietary modifications on overall student sodium intake.

Main Methods:

• Implemented food preparation modifications over a 5-week period to lower sodium content.
• Collected food diaries from approximately 70 student volunteers weekly to estimate total sodium intake.
• Conducted laboratory analysis of 24-hour food collections for comparison with diary estimates.
• Assessed student acceptance of reduced-sodium versus standard-sodium food products.

Main Results:

• Average sodium content in prepared foods decreased by 51%.
• Reduced-sodium foods were generally well-accepted, with ratings comparable to usual-sodium versions.
• Total student sodium intake decreased by 35% (from 136 mEq to 88 mEq), with food choices being the primary determinant.
• Table salt additions had a minimal impact on overall sodium consumption.

Conclusions:

• Modifying food preparation can significantly reduce sodium content in school meals.
• Lower-sodium diets are highly acceptable to young people.
• Dietary interventions focused on food preparation are effective in reducing adolescent sodium intake and promoting healthier eating habits.