Visit 1: Participants will report the Laboratory of Sensory and Ingestive Studies following and overnight fast, and having refrained from using oral care products for at least two hours prior to the visit. Participants who meet the BMI requirements, will have electrodes placed on their wrist, upper, and lower jaw and will be asked to chew the following stimuli: walnuts, almonds and pistachios for 15 seconds and expectorate the bolus into a beaker. However, when presented with 5 g walnuts participants will be asked to chew until the point where they would normally swallow and then spit the bolus into a beaker. The chewing conditions are randomized and include: 1) 5 g nuts alone, 2) 5 g nuts with 5 ml water, 3) 5 g nuts with 5 ml apple juice, 4) 5 g nuts with 5 g plain yogurt, 5) 5 g nuts with 5 g sweet yogurt. Following each chewing condition, participants will rate hedonic preference on a 9-point scale.