In a cross-over study, 59 participants were randomly assigned to receive either 100 kcal packs or standard size packages of snacks for one week. After a minimum of a one week washout period, participants received the other form of the snack for a further week. Snack consumption was recorded by participants in a diary. According to the results, participants consumed an average of 186.9 fewer grams of snacks per week when receiving 100 kcal snack packs compared to standard size packages of snacks.