If you need to know which are the vitamin B9 reference ranges or you require more information about vitamin B9 in a blood test, you can visit normal vitamin B9 in a blood test.
Vitamin B9 is also called folic acid or folate. A high vitamin B9 level in the blood is not usually a matter for concern. Since it is a water-soluble vitamin, the excess is excreted in the urine.
High folate levels in the blood may be related to a vitamin B12 deficiency. Body cells need vitamin B12 to use folate.
Vitamin B9 blood values are usually given in ng/ml but sometimes you can see these values in nmol/l following the International System of Units (SI). In case your values are in nmol/l you can convert them using this tool:
A high vitamin B9 level in the blood means:
An increase of Vitamin B9 over the normal range is not common because it is usually excreted through the urine. It may be a sign of pernicious anemia (due to lack of vitamin B12) so it is important to study also vitamin B12 level in the blood. If there is a vitamin B12 deficiency, you should visit your doctor.
There are some health circumstances than can raise your vitamin B9 (folic acid) level in the blood:
A vitamin B9 (folic acid) level in the blood higher than normal may be a sign of the following diseases:
One of the common cause of vitamin B9 increase is a vitamin B12 deficiency. This happens for example in case of pernicious anemia. If this is your case, a visit to your doctor is recommended and he may prescribe you vitamin B12 supplements.
Green leafy vegetables (spinach, cabbage, broccoli, lettuce) are foods with a high folate content, so a vegetarian diet with a high intake of these products and a low intake of meat (which provides vitamin B12) may increase vitamin B9 level in the blood.
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The following values are considered to be above the normal range:
IMPORTANT: These levels are expressed in ng/ml. They are an example of a healthy adult of about 45 years old with no known disease and not taking any medication. The ranges can be different depending on the laboratory or on your personal circumstances.
Vitamin B9 (Folic Acid) | |||||||
|---|---|---|---|---|---|---|---|
| Severe increase | |||||||
| 20.1 ng/ml | 20.2 ng/ml | 20.3 ng/ml | 20.4 ng/ml | 20.5 ng/ml | 20.6 ng/ml | 20.7 ng/ml | 20.8 ng/ml |
| 20.9 ng/ml | 21 ng/ml | 21.1 ng/ml | 21.2 ng/ml | 21.3 ng/ml | 21.4 ng/ml | 21.5 ng/ml | 21.6 ng/ml |
| 21.7 ng/ml | 21.8 ng/ml | 21.9 ng/ml | 22 ng/ml | 22.1 ng/ml | 22.2 ng/ml | 22.3 ng/ml | 22.4 ng/ml |
| 22.5 ng/ml | 22.6 ng/ml | 22.7 ng/ml | 22.8 ng/ml | 22.9 ng/ml | 23 ng/ml | 23.1 ng/ml | 23.2 ng/ml |
| 23.3 ng/ml | 23.4 ng/ml | 23.5 ng/ml | 23.6 ng/ml | 23.7 ng/ml | 23.8 ng/ml | 23.9 ng/ml | 24 ng/ml |
| 24.1 ng/ml | 24.2 ng/ml | 24.3 ng/ml | 24.4 ng/ml | 24.5 ng/ml | 24.6 ng/ml | 24.7 ng/ml | 24.8 ng/ml |
| 24.9 ng/ml | 25 ng/ml | 25.1 ng/ml | 25.2 ng/ml | 25.3 ng/ml | 25.4 ng/ml | 25.5 ng/ml | 25.6 ng/ml |
| 25.7 ng/ml | 25.8 ng/ml | 25.9 ng/ml | 26 ng/ml | 26.1 ng/ml | 26.2 ng/ml | 26.3 ng/ml | 26.4 ng/ml |
| 26.5 ng/ml | 26.6 ng/ml | 26.7 ng/ml | 26.8 ng/ml | 26.9 ng/ml | 27 ng/ml | 27.1 ng/ml | 27.2 ng/ml |
| 27.3 ng/ml | 27.4 ng/ml | 27.5 ng/ml | 27.6 ng/ml | 27.7 ng/ml | 27.8 ng/ml | 27.9 ng/ml | 28 ng/ml |
| 28.1 ng/ml | 28.2 ng/ml | 28.3 ng/ml | 28.4 ng/ml | 28.5 ng/ml | 28.6 ng/ml | 28.7 ng/ml | 28.8 ng/ml |
| 28.9 ng/ml | 29 ng/ml | 29.1 ng/ml | 29.2 ng/ml | 29.3 ng/ml | 29.4 ng/ml | 29.5 ng/ml | 29.6 ng/ml |
| 29.7 ng/ml | 29.8 ng/ml | 29.9 ng/ml | 30 ng/ml | 30.1 ng/ml | 30.2 ng/ml | 30.3 ng/ml | 30.4 ng/ml |
| 30.5 ng/ml | 30.6 ng/ml | 30.7 ng/ml | 30.8 ng/ml | 30.9 ng/ml | 31 ng/ml | 31.1 ng/ml | 31.2 ng/ml |
| 31.3 ng/ml | 31.4 ng/ml | 31.5 ng/ml | 31.6 ng/ml | 31.7 ng/ml | 31.8 ng/ml | 31.9 ng/ml | 32 ng/ml |
| 32.1 ng/ml | 32.2 ng/ml | 32.3 ng/ml | 32.4 ng/ml | 32.5 ng/ml | 32.6 ng/ml | 32.7 ng/ml | 32.8 ng/ml |
| 32.9 ng/ml | 33 ng/ml | 33.1 ng/ml | 33.2 ng/ml | 33.3 ng/ml | 33.4 ng/ml | 33.5 ng/ml | 33.6 ng/ml |
| 33.7 ng/ml | 33.8 ng/ml | 33.9 ng/ml | 34 ng/ml | 34.1 ng/ml | 34.2 ng/ml | 34.3 ng/ml | 34.4 ng/ml |
| 34.5 ng/ml | 34.6 ng/ml | 34.7 ng/ml | 34.8 ng/ml | 34.9 ng/ml | 35 ng/ml | 35.1 ng/ml | 35.2 ng/ml |
| 35.3 ng/ml | 35.4 ng/ml | 35.5 ng/ml | 35.6 ng/ml | 35.7 ng/ml | 35.8 ng/ml | 35.9 ng/ml | 36 ng/ml |
| 36.1 ng/ml | 36.2 ng/ml | 36.3 ng/ml | 36.4 ng/ml | 36.5 ng/ml | 36.6 ng/ml | 36.7 ng/ml | 36.8 ng/ml |
| 36.9 ng/ml | 37 ng/ml | 37.1 ng/ml | 37.2 ng/ml | 37.3 ng/ml | 37.4 ng/ml | 37.5 ng/ml | 37.6 ng/ml |
| 37.7 ng/ml | 37.8 ng/ml | 37.9 ng/ml | 38 ng/ml | 38.1 ng/ml | 38.2 ng/ml | 38.3 ng/ml | 38.4 ng/ml |
| 38.5 ng/ml | 38.6 ng/ml | 38.7 ng/ml | 38.8 ng/ml | 38.9 ng/ml | 39 ng/ml | 39.1 ng/ml | 39.2 ng/ml |
| 39.3 ng/ml | 39.4 ng/ml | 39.5 ng/ml | 39.6 ng/ml | 39.7 ng/ml | 39.8 ng/ml | 39.9 ng/ml | 40 ng/ml |
| 40.1 ng/ml | 40.2 ng/ml | 40.3 ng/ml | 40.4 ng/ml | 40.5 ng/ml | 40.6 ng/ml | 40.7 ng/ml | 40.8 ng/ml |
| 40.9 ng/ml | 41 ng/ml | 41.1 ng/ml | 41.2 ng/ml | 41.3 ng/ml | 41.4 ng/ml | 41.5 ng/ml | 41.6 ng/ml |
| 41.7 ng/ml | 41.8 ng/ml | 41.9 ng/ml | 42 ng/ml | 42.1 ng/ml | 42.2 ng/ml | 42.3 ng/ml | 42.4 ng/ml |
| 42.5 ng/ml | 42.6 ng/ml | 42.7 ng/ml | 42.8 ng/ml | 42.9 ng/ml | 43 ng/ml | 43.1 ng/ml | 43.2 ng/ml |
| 43.3 ng/ml | 43.4 ng/ml | 43.5 ng/ml | 43.6 ng/ml | 43.7 ng/ml | 43.8 ng/ml | 43.9 ng/ml | 44 ng/ml |
| 44.1 ng/ml | 44.2 ng/ml | 44.3 ng/ml | 44.4 ng/ml | 44.5 ng/ml | 44.6 ng/ml | 44.7 ng/ml | 44.8 ng/ml |
| 44.9 ng/ml | 45 ng/ml | 45.1 ng/ml | 45.2 ng/ml | 45.3 ng/ml | 45.4 ng/ml | 45.5 ng/ml | 45.6 ng/ml |
| 45.7 ng/ml | 45.8 ng/ml | 45.9 ng/ml | 46 ng/ml | 46.1 ng/ml | 46.2 ng/ml | 46.3 ng/ml | 46.4 ng/ml |
| 46.5 ng/ml | 46.6 ng/ml | 46.7 ng/ml | 46.8 ng/ml | 46.9 ng/ml | 47 ng/ml | 47.1 ng/ml | 47.2 ng/ml |
| 47.3 ng/ml | 47.4 ng/ml | 47.5 ng/ml | 47.6 ng/ml | 47.7 ng/ml | 47.8 ng/ml | 47.9 ng/ml | 48 ng/ml |
| 48.1 ng/ml | 48.2 ng/ml | 48.3 ng/ml | 48.4 ng/ml | 48.5 ng/ml | 48.6 ng/ml | 48.7 ng/ml | 48.8 ng/ml |
| 48.9 ng/ml | 49 ng/ml | 49.1 ng/ml | 49.2 ng/ml | 49.3 ng/ml | 49.4 ng/ml | 49.5 ng/ml | 49.6 ng/ml |
| 49.7 ng/ml | 49.8 ng/ml | 49.9 ng/ml | 50 ng/ml | 50.1 ng/ml | 50.2 ng/ml | 50.3 ng/ml | 50.4 ng/ml |
| 50.5 ng/ml | 50.6 ng/ml | 50.7 ng/ml | 50.8 ng/ml | 50.9 ng/ml | 51 ng/ml | 51.1 ng/ml | 51.2 ng/ml |
| 51.3 ng/ml | 51.4 ng/ml | 51.5 ng/ml | 51.6 ng/ml | 51.7 ng/ml | 51.8 ng/ml | 51.9 ng/ml | 52 ng/ml |
| 52.1 ng/ml | 52.2 ng/ml | 52.3 ng/ml | 52.4 ng/ml | 52.5 ng/ml | 52.6 ng/ml | 52.7 ng/ml | 52.8 ng/ml |
| 52.9 ng/ml | 53 ng/ml | 53.1 ng/ml | 53.2 ng/ml | 53.3 ng/ml | 53.4 ng/ml | 53.5 ng/ml | 53.6 ng/ml |
| 53.7 ng/ml | 53.8 ng/ml | 53.9 ng/ml | 54 ng/ml | 54.1 ng/ml | 54.2 ng/ml | 54.3 ng/ml | 54.4 ng/ml |
| 54.5 ng/ml | 54.6 ng/ml | 54.7 ng/ml | 54.8 ng/ml | 54.9 ng/ml | 55 ng/ml | 55.1 ng/ml | 55.2 ng/ml |
| 55.3 ng/ml | 55.4 ng/ml | 55.5 ng/ml | 55.6 ng/ml | 55.7 ng/ml | 55.8 ng/ml | 55.9 ng/ml | 56 ng/ml |
| 56.1 ng/ml | 56.2 ng/ml | 56.3 ng/ml | 56.4 ng/ml | 56.5 ng/ml | 56.6 ng/ml | 56.7 ng/ml | 56.8 ng/ml |
| 56.9 ng/ml | 57 ng/ml | 57.1 ng/ml | 57.2 ng/ml | 57.3 ng/ml | 57.4 ng/ml | 57.5 ng/ml | 57.6 ng/ml |
| 57.7 ng/ml | 57.8 ng/ml | 57.9 ng/ml | 58 ng/ml | 58.1 ng/ml | 58.2 ng/ml | 58.3 ng/ml | 58.4 ng/ml |
| 58.5 ng/ml | 58.6 ng/ml | 58.7 ng/ml | 58.8 ng/ml | 58.9 ng/ml | 59 ng/ml | 59.1 ng/ml | 59.2 ng/ml |
| 59.3 ng/ml | 59.4 ng/ml | 59.5 ng/ml | 59.6 ng/ml | 59.7 ng/ml | 59.8 ng/ml | 59.9 ng/ml | 60 ng/ml |
| 60.1 ng/ml | 60.2 ng/ml | 60.3 ng/ml | 60.4 ng/ml | 60.5 ng/ml | 60.6 ng/ml | 60.7 ng/ml | 60.8 ng/ml |
| 60.9 ng/ml | 61 ng/ml | 61.1 ng/ml | 61.2 ng/ml | 61.3 ng/ml | 61.4 ng/ml | 61.5 ng/ml | 61.6 ng/ml |
| 61.7 ng/ml | 61.8 ng/ml | 61.9 ng/ml | 62 ng/ml | 62.1 ng/ml | 62.2 ng/ml | 62.3 ng/ml | 62.4 ng/ml |
| 62.5 ng/ml | 62.6 ng/ml | 62.7 ng/ml | 62.8 ng/ml | 62.9 ng/ml | 63 ng/ml | 63.1 ng/ml | 63.2 ng/ml |
| 63.3 ng/ml | 63.4 ng/ml | 63.5 ng/ml | 63.6 ng/ml | 63.7 ng/ml | 63.8 ng/ml | 63.9 ng/ml | 64 ng/ml |
| 64.1 ng/ml | 64.2 ng/ml | 64.3 ng/ml | 64.4 ng/ml | 64.5 ng/ml | 64.6 ng/ml | 64.7 ng/ml | 64.8 ng/ml |
| 64.9 ng/ml | 65 ng/ml | 65.1 ng/ml | 65.2 ng/ml | 65.3 ng/ml | 65.4 ng/ml | 65.5 ng/ml | 65.6 ng/ml |
| 65.7 ng/ml | 65.8 ng/ml | 65.9 ng/ml | 66 ng/ml | 66.1 ng/ml | 66.2 ng/ml | 66.3 ng/ml | 66.4 ng/ml |
| 66.5 ng/ml | 66.6 ng/ml | 66.7 ng/ml | 66.8 ng/ml | 66.9 ng/ml | 67 ng/ml | 67.1 ng/ml | 67.2 ng/ml |
| 67.3 ng/ml | 67.4 ng/ml | 67.5 ng/ml | 67.6 ng/ml | 67.7 ng/ml | 67.8 ng/ml | 67.9 ng/ml | 68 ng/ml |
| 68.1 ng/ml | 68.2 ng/ml | 68.3 ng/ml | 68.4 ng/ml | 68.5 ng/ml | 68.6 ng/ml | 68.7 ng/ml | 68.8 ng/ml |
| 68.9 ng/ml | 69 ng/ml | 69.1 ng/ml | 69.2 ng/ml | 69.3 ng/ml | 69.4 ng/ml | 69.5 ng/ml | 69.6 ng/ml |
| 69.7 ng/ml | 69.8 ng/ml | 69.9 ng/ml | 70 ng/ml | 70.1 ng/ml | 70.2 ng/ml | 70.3 ng/ml | 70.4 ng/ml |
| 70.5 ng/ml | 70.6 ng/ml | 70.7 ng/ml | 70.8 ng/ml | 70.9 ng/ml | 71 ng/ml | 71.1 ng/ml | 71.2 ng/ml |
| 71.3 ng/ml | 71.4 ng/ml | 71.5 ng/ml | 71.6 ng/ml | 71.7 ng/ml | 71.8 ng/ml | 71.9 ng/ml | 72 ng/ml |
| 72.1 ng/ml | 72.2 ng/ml | 72.3 ng/ml | 72.4 ng/ml | 72.5 ng/ml | 72.6 ng/ml | 72.7 ng/ml | 72.8 ng/ml |
| 72.9 ng/ml | 73 ng/ml | 73.1 ng/ml | 73.2 ng/ml | 73.3 ng/ml | 73.4 ng/ml | 73.5 ng/ml | 73.6 ng/ml |
| 73.7 ng/ml | 73.8 ng/ml | 73.9 ng/ml | 74 ng/ml | 74.1 ng/ml | 74.2 ng/ml | 74.3 ng/ml | 74.4 ng/ml |
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