What is the recommended dosage for XS™ Protein Bars? Amway Support September 27, 2017 01:04 XS Protein Bars are a convenient protein snack which can be used before or after exercise or as a between meal snack. We recommend a maximum of 3 bars per day. Excess consumption may have a laxative effect. Related articles What is the recommended dosage for XS™ Whey Protein?