A recent study published by the Journal of the American College of Nutrition has found that pulses (chickpeas, beans, lentils) and wholegrains can help with fat reduction.
The study involving 113 people showed that although there were no large differences in body weight at the end of the 18 month trail, those who ate more pulses and wholegrain products had a 2.8cm waist reduction, whereas those who did not had no change.
Waist measurement is now the gold standard for determining the effects of weight on health, and is said to be more important than looking at weight alone.
Venn et al 2010, Journal of the American College of Clinical Nutrition, vol. 29, no. 4, pp 365-372.