Can you tell me what number of glasses if water should you drink daily, & does it really help with losing weight.?

A general go by: is 64 ounces per day. This is really quite general- you will need more if you are getting significant exercise or in hot climates. Yes, appropriate water intake is very important for weight loss.

1.2 L.: An average person will need about 1.2 Liters of fluid intake per day - some of that comes from food . Water intake is not related to weight loss unless of course you are able to eat fewer calories as a result of your tummy being full of water.