This a a typical shabbos for many frum men
Go to Shul and after Shul there is a full hot kiddish, complete with Chulent, Kugel, Cake really enough for a full meal
Go home and eat ANOTHER full meal including chulent, Kugel , cake, bread and more
meal will finish at about 2, take a quick nap and then
eat ANOTHER full meal before 5:30ish (this time of year) .
And then later eat MORE food at night for Meleva Malka.
You have basically eaten 4 fully loaded meals without any exercise