Is ALT SGPT 16 low, normal or dangerous? What does Alanine aminotransferase level 16 mean?

📅 Medical Review Date: October 23, 2025

Your ALT SGPT level of 16 is a Low ALT SGPT level.

An ALT SGPT level of 16 U/L usually means the liver is healthy with no inflammation. It suggests normal liver function. Low levels of ALT SGPT typically do not cause any symptoms and are not a concern. This can be caused by vitamin B6 deficiency, chronic kidney disease, or may be normal. Further tests are often needed to identify the cause and guide appropriate treatment.

Low ALT SGPT levels may indicate underlying health problems. The normal range is typically between 21 U/L and 72 U/L. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal ALT SGPT range for men is :21 - 72 U/L

Ideal values of ALT SGPT depending on age (male) :

Age	Ideal ALT SGPT value
<5 years	21.336
5-10 years	21.677
10-15 years	22.024
15-20 years	22.376
20-25 years	22.734
25-30 years	23.098
30-35 years	23.468
35-40 years	23.843
40-45 years	24.224
45-50 years	24.612
50-55 years	25.006
55-60 years	25.406
60-70 years	25.812
70-80 years	26.225
80-90 years	26.645
90-100 years	27.071
>100 years	27.504

*Ideal values are calculated based on our database of patient records

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

Some examples of conditions that increase or decrease ALT SGPT levels include:

• Alcohol abuse
• Blockage of the bile ducts.
• Kidney damage.
• Damage to red blood cells
• Heart attack or heart failure

Normal range of ALT SGPT found among women :21-72 U/L

Ideal values of ALT SGPT depending on age (female) :

Age	Ideal ALT SGPT value
<5 years	21.346
5-10 years	21.698
10-15 years	22.056
15-20 years	22.419
20-25 years	22.788
25-30 years	23.164
30-35 years	23.546
35-40 years	23.934
40-45 years	24.328
45-50 years	24.729
50-55 years	25.137
55-60 years	25.551
60-70 years	25.972
70-80 years	26.4
80-90 years	26.835
90-100 years	27.277
>100 years	27.727

If you take a ALT SGPT blood test and the results are not in the normal range (21-72 U/L), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the ALT SGPT Test Is Done :

When your doctor orders a ALT SGPT test, it involves a straightforward blood draw to measure your ALT SGPT levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your ALT SGPT test results are usually available within a few hours.

Medical References

• Mayo Clinic – Alanine aminotransferase (ALT) blood test
• MedlinePlus – ALT Blood Test
• WebMD – Alanine Aminotransferase (ALT) Test: What Does It Mean?
• Cleveland Clinic – Alanine Transaminase (ALT) Blood Test: What It Is, Procedure & Results

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