Frequently Asked Questions

"Fatty liver" describes fat build-up in the liver. MASLD (metabolic dysfunction-associated steatotic liver disease) is the current clinical term for fatty liver linked to metabolic risk factors like obesity, type 2 diabetes, or high cholesterol. MASH (metabolic dysfunction-associated steatohepatitis) is the more advanced, inflamed form of MASLD that carries a higher risk of progressing to fibrosis or cirrhosis.

In its early stages, yes — often within weeks to months. Weight loss of just 5–10% of body weight, reduced alcohol and added sugar intake, and regular exercise are all linked to measurable reductions in liver fat. Once significant scarring (fibrosis or cirrhosis) has developed, damage is generally no longer reversible, which is why early action matters.

There's no universally safe amount — risk is a spectrum, not a cliff edge. U.S. clinical guidelines describe more than 14 drinks/week (men) or 7 drinks/week (women and adults 65+) as at-risk drinking. See the Alcohol & the Liver page for the full breakdown.

The most common are ALT and AST (liver enzymes that rise with cell damage), GGT (rises with liver strain, alcohol use, and bile duct issues), and bilirubin (rises when the liver can't process waste products properly). These are usually bundled into a standard "liver function test" (LFT) panel your doctor can order.

No. It's an educational estimate based on a published research formula, not a diagnostic tool. It cannot tell you whether you have fatty liver disease — only a doctor, using proper testing such as blood work or imaging, can do that. See the Risk Calculator page for the full disclaimer.

It varies a lot by ingredient. Some, like vitamin E and omega-3s, have real clinical trial evidence in specific contexts, usually under medical supervision. Others, especially some herbal "detox" products, have weak evidence and in rare cases have themselves been linked to liver injury. See the Supplements and Medication Safety pages for specifics.

Yes, in rare cases — this is called drug-induced liver injury (DILI), and it can happen even at correct doses due to individual sensitivity. It's uncommon, which is why it's not a reason to stop necessary medication on your own, but it's also why doctors periodically order liver bloodwork for certain drugs.

See the When to See a Doctor page for a full decision guide — but as a rule, any yellowing of skin or eyes, dark urine, abdominal swelling, or unexplained easy bruising warrants prompt medical attention, not a wait-and-see approach.