What is a good folate level
John Parsons
Updated on April 14, 2026
The normal range is 2.7 to 17.0 nanograms per milliliter (ng/mL) or 6.12 to 38.52 nanomoles per liter (nmol/L). Normal value ranges may vary slightly among different labs. Talk to your provider about the meaning of your test results.
What is considered a low folate level?
Biochemical deficiency has been defined as a concentration of less than 3 ng/mL (< 6.7 nmol/L) for serum folate and less than 140 ng/ml (< 322 nmol/L) for erythrocyte folate.
Is 20.0 a good folate level?
The usual reference range of serum folate is 2.5-20 ng/mL. By statistical definition, 2-5% of healthy individuals will have a serum folate level of less than 2.5 ng/mL; hence, the serum folate level cannot be used alone to establish the diagnosis of folate deficiency.
What is high folate level?
High values High levels of folate in the blood may mean that you eat a diet rich in folate or folic acid, take vitamins, or take folic acid pills. Consuming more folate than the body needs does not cause problems. High folate levels can also mean a vitamin B12 deficiency. Body cells need vitamin B12 to use folate.Is low folate serious?
Severe effects are rare. But if you’ve been without folate for a long time, your risk of having some types of cancer and heart disease goes up. You might also find it harder to get pregnant. Your fertility will likely return to normal once you’re getting enough folate again.
Can high folate mask low B12?
Consuming a high amount of folic acid can eliminate the anemia and its symptoms, leaving individuals and their doctors without the most obvious sign of too little B-12.
What are normal B12 and folate levels?
The normal range for vitamin B12 can vary slightly depending on the lab. But a normal level of vitamin B12 in your bloodstream is generally between 190 and 950 picograms per milliliter (pg/mL). Between 200 to 300 pg/mL is considered borderline and your doctor may do more testing.
What is a normal vitamin D range?
The normal range of vitamin D is measured as nanograms per milliliter (ng/mL). Many experts recommend a level between 20 and 40 ng/mL. Others recommend a level between 30 and 50 ng/mL. The examples above are common measurements for results of these tests.How much is too much folate?
You should not get more than 1,000 micrograms of folic acid a day, unless your doctor prescribes a higher amount. Too much folic acid can hide signs that you lack vitamin B12, which can cause nerve damage.
Are B12 and B9 the same?Vitamin B12 or B9 (commonly called folate) deficiency anaemia occurs when a lack of vitamin B12 or folate causes the body to produce abnormally large red blood cells that cannot function properly.
Article first time published onCan low folic acid cause weight gain?
Furthermore, folate deficiency may lead to body weight gain and adiposity [12]. Several studies has indicated a link between low folate intake or low serum folate concentration and greater body mass, BMI, overall fat accumulation, and higher waist circumference [13,14,15,16].
How long does it take to correct folate deficiency?
Folate-deficiency anemia most often responds well to treatment within 3 to 6 months. It will likely get better when the underlying cause of the deficiency is treated.
How do I get more folate?
- Dark green leafy vegetables (turnip greens, spinach, romaine lettuce, asparagus, Brussels sprouts, broccoli)
- Beans.
- Peanuts.
- Sunflower seeds.
- Fresh fruits, fruit juices.
- Whole grains.
- Liver.
- Seafood.
Is 500 a good B12 level?
The vitamin B12 standard reference range is 200–700 pg/ml whereas the proposed optimal range is 500–1300 pg/ml [10]. Higher vitamin B12 ranges have been associated with increased cognitive function, and reflexes, decreased brain atrophy, confusion, weakness and depression [10].
Is 400 a low B12 level?
Patients with serum vitamin B12 levels between 150 and 400 ng/L are considered borderline deficient and should be evaluated further by functional tests for vitamin B12 deficiency.
What are symptoms of low folate?
- extreme tiredness (fatigue)
- lack of energy (lethargy)
- breathlessness.
- feeling faint.
- headaches.
- pale skin.
- noticeable heartbeats (palpitations)
Can too much folic acid cause neuropathy?
However, previous studies have found evidence that excess folate intake could potentially worsen associated neurological deficits, including peripheral neuropathy, in older adults.
What are the neurological symptoms of B12 deficiency?
- vision problems.
- memory loss.
- pins and needles (paraesthesia)
- loss of physical co-ordination (ataxia), which can affect your whole body and cause difficulty speaking or walking.
What is the main cause of vitamin B12 deficiency?
However, the most common cause of vitamin B-12 deficiency anemia is a lack of a substance called intrinsic factor, which can be caused when your immune system mistakenly attacks the stomach cells that produce this substance. This type of anemia is called pernicious anemia.
Is 1000 mcg folate too much?
It’s unlikely that women will be hurt from getting too much folic acid. We don’t know of an amount that is dangerous. Yet, for most women, consuming more than 1,000 mcg of folic acid daily is of no benefit. Unless their doctor advises them to take more, most women should limit the amount they take to 1,000 mcg a day.
Is 800 mcg of folate too much?
So experts say that all women who are able to get pregnant should take a daily supplement that has 400 to 800 mcg of folic acid. Some women need even higher doses. Women who are pregnant with twins or more should take 1000 mcg a day.
What good is folate?
Folate (vitamin B-9) is important in red blood cell formation and for healthy cell growth and function. The nutrient is crucial during early pregnancy to reduce the risk of birth defects of the brain and spine.
How much vitamin D should a 65 year old take?
Adults aged up to 70 years old should be getting at least 600 IU. Adults older than 70 should be getting at least 800 IU of vitamin D. However, some sources say you should consume up to 1000 IU of vitamin D past the age of 70.
What is a normal vitamin D level for a 60 year old woman?
Children 1–18 years: 600 IU (15 mcg). Adults up to 70 years: 600 IU (15 mcg). Adults over 70 years: 800 IU (20 mcg).
Is vitamin D level of 70 too high?
The current daily recommended amount of vitamin D is 600 IU per day for adults under the age of 70, and 800 IU for older adults. Up to 4,000 IU per day is generally considered the safe upper limit, however, doses up to 10,000 IU/day have not been shown to cause toxicity.
Can you take folic acid and vitamin D together?
No interactions were found between folic acid and Vitamin D3. This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Does lack of folic acid cause hair loss?
Folic acid is found in leafy greens and many foods are fortified with folic acid, making deficiency uncommon. Deficiency mainly results in megaloblastic anemia, without manifestation of hair loss.
When should I take folic acid morning or night?
What is the best time of day to take folic acid? Most nutritionists say to take supplements, like folic acid, in the morning. Digestion slows at night, so taking your vitamins in the morning will allow for better and more efficient absorption into your system.
Does folate help hair growth?
According to Dr Chaturvedi, folic acid helps to promote hair growth, add volume and even reduce the rate of premature greying—it does so by amping up the body’s cell production processes. “If you’re deficient in folate, taking supplements may result in the growth of new hair in some patients,” Dr Gupta agrees.
Does folate help you lose weight?
There is no evidence that people with adequate blood levels of folic acid will gain weight if they take supplements. However, weight loss is one possible side effect of a folate deficiency. If someone makes up for a folic acid deficiency by supplementing, he or she may regain the weight lost because of the shortfall.
Does folic acid make you tired?
It can cause symptoms like weakness, fatigue, difficulty concentrating, and shortness of breath ( 14 , 15 ). If you take folic acid supplements and recognize any of these symptoms, consider getting your B12 levels checked. High intakes of folic acid may mask a vitamin B12 deficiency.