1. the effects of an intervention vs. control on levels of glycosylated haemoglobin (haemoglobin A1c) in Hispanic participants, older than 18 years, who have elevated hA1c at baseline (>6.0%). Glycosylated haemoglobin provides an indication of blood sugar levels over the past 3 months. Elevated hA1c levels are seen in diabetics and pre-diabetics.