What quantities are you talking about? I average consumption of 7 pints of average 4.5% beer a week, maybe more maybe less some weeks and my missus guzzles a few also, sometimes higher strength, sometimes lower.
I give a small quantity from each batch to family and friends. This means one brew day (36 bottles/18 litres) every 4 weeks is easily consumed, sometimes I'm at risk of running out, so I brew twice a month when I can and I know the 3 main summer months will be lean months with a brew day every six weeks or so!
On average I must be brewing once a month throughout the year, I don't think that's excessive and my waist line is kept in check, in fact I've been slowly losing weight over the last few months!