Background: The economic income is a key determinant the choice of food. The objective was to determine the change in intention to purchase food portions when the budget increases in a simulated purchase environment. Methods: A non-randomized intervention study was conducted on 70 adults aged 18-70 years responsible for home purchases. Two non-consecutive purchases of food were made in an online supermarket. For each purchase, an amount of money was allocated, the first of CH $ 87,220 (USD $ 134.2) and the second of CH $ 235,400 (USD $ 362.2). The participants were classified according to years of schooling. The purchased foods were transformed into consumption portions. Results: The mean age was 42.1 ± 13.5 years. In those ≤12 years of schooling increase the median consumption of fruits and vegetables by 1.7 servings/day; of foods rich in sugars (ARA) 2.9 servings/day and legumes 2.1 servings/week when the budget allocated to the purchase increases, compared to those with higher schooling that increase to 1.4 servings/day of fruits and vegetables; 2.2 servings/day of ARA. Participants with higher education have healthier food choices with the amount 1 compared to those with less education. Conclusions: Families when they have a higher income tend to choose a greater amount of foods considered healthy, regardless of the educational level.