Fatty Liver Blood Test

The liver creates various chemicals that are carried out to the bloodstream. Therefor, a blood test is playing a key part in diagnosing many liver disorders and diseases, including a Fatty Liver.

Elevated levels of these chemicals may show a damage to the liver or a specific liver disease. A blood test can measure their levels, and we can try to find the problem even before its symptoms start to show up.

This liver functions blood tests requires to fast for at least 6 hours before the test. Some drugs can affect the results, so please consult with your physician about any drug you use regularly.

Fatty Liver Blood Test

Fatty Liver blood test usually includes the following checks

ALT (also called SGPT / Alanine Transaminase)

This is an enzyme that assists proteins to process. High level of ALT may suggest a liver injury. The normal levels of ALT is around 5-40 units per liter (range can vary in different labs).
Fatty Liver blood test

AST (also called SGOT)

An enzyme that is located mainly in liver cells. Its levels are usually raised when there is a liver damage or injury (just like ALT). The normal levels of AST are between 5-45, which is very similar to the ALT enzyme.

ALP (Alkaline Phosphatase)

Related to the biliary tract. If ALP is raised, and high levels of alkaline phosphatase has been found in the bloodstream, the cause might be a liver disorder (including a fatty liver). Normal rates of ALP are between 44-147 units per liter.

GGT (Gamma-Glutamyl Transpeptidase)

An enzyme that is mostly found in the liver, kidneys, heart, and other important organs. The normal rates of GGT are between 40 to 78 units per liter. It’s very similar to ALP (Alkaline Phosphatase), so in that respect, raised GGT can be a symptom of a liver disorder. The difference is that elevated ALP can be also be because of a bone disease, but GGT can’t.


This is the core protein created by the liver, that passes into the bloodstream. The ability to make albumin (and many other proteins) is influenced in various liver disorders, including a fatty liver. Normal levels of albumin are between 3.4 to 5.4 deciliter.


This chemical is a direct result of hemoglobin when it’s released – the molecule that ties oxygen into the red blood cells. The causes of higher bilirubin could be a liver disorder. High level of bilirubin also makes you jaundiced (yellow colored), and could affect your skin and eye color. In the bilirubin blood test, there are 3 types of bilirubin:

  • Direct Bilirubin (unconjugated bilirubin) – passes through the liver. Normal levels of direct bilirubin are between 0 to 0.3 deciliter.
  • Indirect Bilirubin (conjugated bilirubin) – doesn’t pass through the liver. Normal levels of Indirect bilirubin are between 0 to 0.3 deciliter.
  • Total Bilirubin – this is the total amount of direct + indirect bilirubin. Normal levels of total bilirubin are between 0.3 to 1.9 deciliter.

A/G Ratio

The ratio of albumin to globulin. Some liver disorders could lead to a low total protein levels. Normal levels of A/G are below 1 deciliter.

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  1. Lonny Crutchley
    Lonny Crutchley says:

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  2. Ahmed hamdin
    Ahmed hamdin says:

    Peace be upon you. My name is Ahmed i really did sgpt test and i founded 79 and i don’t have any virus or Cholesterol in my blood and always doing workout i already gone to doctor make sonar and he said i have liver fatty but how if i doing sport not have Cholesterol
    Please i want your help how can i control in sgpt

  3. Teresa
    Teresa says:

    If fatty liver does not show up in blood tests does that mean it doesn’t exist or can someone have fatty liver that doesn’t show in blood tests?

  4. Beth Cook
    Beth Cook says:

    I am a 53 year old white female who during recent blood work was diagnosed with pre-diabetes and fatty liver disease. Glucose level was 110, A1C was 6.2, AST liver enzyme was 145, ALT liver enzyme was 190. An abdominal ultrasound was unremarkable…all seemed normal. I have no pain at all. I was already on blood pressure meds for one year.
    In the 2 months since this diagnosis (May 27), I have been prescribed Metformin 500 mg 2x daily, continued with blood pressure meds, ate a low carb, high protein diet, and walked 5 days a week for about 45 minutes/daily.
    This week, after 8 weeks of this treatment, I have lost 14 pounds, 10 inches, have come off blood pressure meds because it was too low, and the blood work results were as follows:
    Glucose-90…No longer pre-diabetic
    AST liver enzymes—72 (still high but cut in half)
    ALT liver enzymes–100 (still high but nearly cut in half)
    My question: I will definitely continue on my diet and exercise regimen because my goal is to get my liver enzymes in the proper range, but since I have lost my Mother to Pancreatic cancer, should I be concerned any further about my Liver enzymes? (I had a negative Hepatitis screening) I remember them saying my Mom’s liver enzymes were “all out of whack”…who knows what that meant. My Doctor is extremely proud of my progress…but I still can have negative thoughts creep in from time to time. BTW my BMI has dropped from 27.2 to 24.9 now. My goal weight is 150..only a few to go… I go back to the doctor in 3 months to recheck blood work.

    • Linda
      Linda says:

      Your note caught my attention because I have non-drinkers’ fatty liver disease, and enlarged liver, though my blood test results all show up as normal. PLUS there is a very high number of family members … father, uncles, grandmother, great grandmother… that died because of pancreatic cancer. On my mother’s side is high incidence of colon cancer deaths which, in her case, they said had spread to her liver and lungs before she died. Scans show I have something in the head and a cyst in the tail of the pancreas to “watch.” There are several cysts in my liver as well.

      When I was first told that I had liver cysts, I was told those are common and not to be concerned. I was told I had a fatty liver and did not know what that meant and thought it meant my liver was just a little fat/big. No more info from that doctor. I was unaware this is a medical condition that gets worse if there aren’t improvements to diet/activities. So, I merrily ignored it for 6 years until another doctor sent me to get a fibroscan and told me fatty liver is a disease.

      When I look back at my mother, her diet, some of her complaints about bloating and discomfort in the area of the litter, I think she had undiagnosed fatty and declining liver health for decades. Thus, her liver was a weak target for the cancer that metastasized there.

      There may be a pancreatic cancer connection to fatty liver but exactly why, I don’t know. This article says that those with NAFLD more often die of some of the cancers mentioned (including pancreatic) than actual liver cancer or failure. https://www.cancerhealth.com/article/aasld18-nafld-cancer-risk

      I have joined a group on Facebook that is so supportive and informative called “Reverse Fatty Liver: Support Group” They are a “closed” group so you click to ask to be added. This group is really helpful.

      Best wished for you

  5. Cindy
    Cindy says:

    I had a ggt level on my blood test come back as 137. And now having more blood tests. Had a hair sample tests done and they have come back with sever liver and kidney damage and few other things. Should these numbers in the ggt result be something to worry bout ? Doctor seems worried to !

  6. thomas
    thomas says:

    I also made ultrasound and all results came clean according to the doctors but I still have the pain and the pain is more to the side of my right upper abdomen.


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  1. […] that fatty liver isn’t yet developed at its full scale. Blood results would show some levels of elevated liver enzymes, but not as […]

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