Energy balance

Islamic fasting during Ramadan results in a statistically significant but small average weight loss (approx. 1.24 kg) during the fasting month, which is almost entirely regained within weeks after Ramadan ends, resulting in negligible long-term weight change.

If you are observing Ramadan, expect to lose about 1-1.5 kg during the month, but do not rely on this for long-term weight management. The weight will likely return after Eid unless you actively maintain the dietary and activity habits you formed during the fast. Focus on maintaining the reduced meal frequency and healthy food choices post-Ramadan to make the weight loss stick.