Fenugreek can help you feel fuller which reduces hunger so you don't have to eat as much to keep from being hungry and since you won't be eating as much when taking the Fenugreek then it will help aid in weight loss.
Besides aiding in weight loss the Fenugreek has a host of other health benefits like supporting digestion and maintaining your blood sugar levels.
The Galactomannan, which is a water-soluble heteropolysaccharide that's found in fenugreek seeds, helps to reduce weight.
Of course you should still watch your diet and exercise to help lose more weight.