The effect of Arnotts Vita-Weat supplementation on weight loss in overweight and obese participants.

INTERVENTION: During the six week intervention period, the intervention group will replace their breakfast and lunch each day with either 2 Arnott's Lunch Slices or up to 6 Vita‐Weat crispbreads based on personal preference, with a choice of prescribed toppings consisting of a protein, vegetable and condiment component. An Accredited Practising Dietitian will administer the intervention during a one on one, face to face consultation of approximately 30 minutes duration. To aid with dietary compliance, participants will be required to complete and return a 3 day diet diary (2 working days and 1 weekend day) at the first (Baseline) and final (Week 6) visits. Participants will receive enough product for the duration of the study. CONDITION: Obesity Overweight PRIMARY OUTCOME: To determine the efficacy of Vita‐Weat food supplementation on weight loss in an overweight and obese group. ; ; Weight loss will be assessed by comparing pre and post intervention weights obtained using calibrated scales. SECONDARY OUTCOME: To determine the difference in subjective appetite between the two diet groups. ; ; Subjective appetite will be assessed using a 100 mm Visual Analogue Scale scores. To establish the food acceptability of the two diet groups. ; ; Food acceptability will be assessed using a Food Acceptability Questionnaires. To examine changes in body composition by waist circumference, fat mass and fat free mass between groups. ; ; Waist circumference measurement is obtained by placing a tape measure at the midline of highest point of the iliac crest and lowest part of the costal margin in the mid‐axillary line in expiration. ; ; Fat mass and fat free mass will be assessed using a DEXA scan. To examine changes in type 2 diabetes and cardiovascular risk factors between groups. ; ; This is a composite secondary outcome. ; ; Changes in type 2 diabetes and cardiovascular risk factors will be assessed using pathological parameters including fasting plasma glucose, insulin, glycated haemoglobin, and full lipid profile. Anthropometric measures such as waist circumference and blood pressure will also contribute to the assessment of this outcome. INCLUSION CRITERIA: *Aged 25‐55 years *Pre‐menopausal *BMI greater than or equal to 25 to less than or equal to 35 kg /m^2 *Regular eating habits; familiar with Vita‐Weat