The 5, 7, and 10 percent rule
Of everything within your control, sustained weight loss does the most, and researchers have mapped the milestones with unusual precision. As the American Gastroenterological Association describes it, losing at least 5% of your body weight tends to reduce liver fat, at least 7% can resolve the inflammation of steatohepatitis, and reaching about 10% can produce regression or stabilization of early scarring. Each threshold unlocks a different, deeper level of healing.
Those numbers are not theoretical. In a 52-week study published in the journal Gastroenterology, 293 people with biopsy-confirmed steatohepatitis followed lifestyle changes for a year — and the results tracked the effort almost step for step. Among everyone in the study, about a quarter saw their steatohepatitis resolve and nearly one in five saw scarring regress. But among those who lost 10% or more of their body weight, every single one had reduced disease activity, 90% had their steatohepatitis resolve, and 45% saw their fibrosis improve.
The honest catch
There is a catch worth naming, because it explains why patience beats intensity. In that same year-long study, only about 30% of participants managed to lose 5% or more of their weight. Reaching these thresholds is powerful, but it is also hard, and a crash diet you abandon in a month does far less than a modest plan you can actually live with.
That is why the how matters so much, and why some people explore structured approaches to stay in a gentle calorie deficit. If that is you, our look at the latest studies on intermittent fasting lays out what the evidence does and doesn't support.