Do you know what is folate?
Folate, the natural form of vitamin B9, is water-soluble and occurs naturally in various foods. Additionally, it is commonly added to food products and available as a supplement in the form of folic acid, which is actually more efficiently absorbed than the folate found in food sources, with absorption rates of 85% compared to 50%, respectively. Folate plays a vital role in DNA and RNA synthesis and is integral to protein metabolism. Moreover, it is instrumental in regulating homocysteine, an amino acid that can be detrimental in excess. Folate is essential for the production of healthy red blood cells and is particularly critical during periods of rapid growth, such as pregnancy and fetal development.
What is vitamin B12? We talked about the link between vitamin B12 and anemia in a previous blog post: Vitamin B12 is essential for the production of red blood cells in the bone marrow. It helps in the maturation of red blood cells and ensures they function properly. A deficiency in vitamin B12 can lead to anemia, specifically megaloblastic anemia, where red blood cells are larger and less functional.
Is folate and vitamin B12 the same thing?
Folate (also known as vitamin B9) and vitamin B12 (cyanocobalamin or cobalamin) are not the same thing; they are two distinct B vitamins, although they are related and work together in several important ways within the body.
Here are some key differences and their roles:
1. Chemical Structure:
Folate is a water-soluble B-vitamin, also known as vitamin B9. Its natural form is found in various foods, especially leafy greens and legumes. Folate is important for DNA and RNA synthesis and cell division.
Vitamin B12, also a water-soluble B-vitamin, is known as cobalamin. It is primarily found in animal-based foods and is essential for neurological function, DNA synthesis, and the formation of red blood cells.
2. Roles in the Body:
Folate is crucial for the formation of DNA and RNA, and it plays a significant role in cell division and growth.It is also involved in amino acid metabolism.
Vitamin B12 is essential for nerve function, red blood cell formation, and the maintenance of healthy brain function. It is also involved in converting homocysteine into methionine, an amino acid, which helps reduce the risk of heart disease.
One key factor in the development of anemia is the deficiency of essential vitamins like folate (also known as vitamin B9) and vitamin B12. These two nutrients play a critical role in the production of healthy red blood cells, making them vital components in the battle against anemia.
What is the relationship between Vitamin B12 and folate?
Vitamin B12 and folate, also known as folic acid, work together to help your body make red blood cells and improve how iron works. They also team up to create a compound called S-adenosylmethionine (SAMe), which plays a role in your immune system and mood.
Symptoms of vitamin B12 or folate deficiency
Deficiency of vitamin B12 (cobalamin) and folate (folic acid) can cause similar symptoms, as both vitamins are essential for the production of red blood cells and various cellular processes. Common symptoms of vitamin B12 or folate deficiency include:
-
Fatigue: Feeling tired and weak is a common symptom of both deficiencies.
Anemia resulting from a lack of red blood cells can lead to reduced oxygen delivery to the body's tissues. - Pale Skin: Anemia can cause a pale or jaundiced (yellowish) appearance of the skin.
- Shortness of Breath: Inadequate red blood cells can lead to reduced oxygen supply, resulting in breathlessness.
- Tingling or Numbness: Nerve damage can occur in vitamin B12 deficiency, leading to tingling or numbness, particularly in the hands and feet.
- Difficulty Walking: Severe B12 deficiency can lead to balance and coordination problems, affecting walking and mobility.
- Glossitis: This is an inflamed or swollen tongue, which can be painful.
- Mouth Ulcers: Ulcers inside the mouth may develop.
- Mood Changes: Deficiencies in B12 and folate are associated with mood disorders, such as depression and irritability.
- Heart Palpitations: Irregular heartbeats or a racing heart can be experienced.
- Cognitive Issues: Problems with memory, concentration, and cognitive function can occur.
- Muscle Weakness: Muscular weakness can be a symptom, especially when combined with nerve damage.
- Vision Changes: In severe cases, vision problems may occur.
Some of these problems can also happen if you have a deficiency in vitamin B12 or folate but do not have anemia.
Occurrence of folate deficiency anemia
In cases of folate-deficiency anemia, there is an abnormal enlargement of red blood cells, which are referred to as macrocytes. When these enlarged cells are observed in the bone marrow, they are specifically termed megaloblasts.Because megaloblasts are so large, they may not make it out of your bone marrow and into your bloodstream. Those that do enter your bloodstream usually don’t live as long as healthy red blood cells.Together, these factors decrease the number of red blood cells you have, causing anemia. This is the reason why this type of anemia is known as megaloblastic anemia.
Who is most at risk of developing folate deficiency anemia?
Risk factors for folate deficiency anemia include:
- Individuals who were categorized as female at birth (AFAB) and are in the age range for potential childbearing.
- Excessive alcohol use
- Older age especially over 60
- Pregnancy and breastfeeding
How is folate deficiency anemia diagnosed?
A healthcare provider will perform a physical exam and review your medical history and symptoms. Because the symptoms of folate deficiency anemia look like many other health problems, providers order blood tests to make a clear diagnosis.
Laboratory tests may encompass:
- Complete blood count (CBC): This assesses the quantity of red blood cells, white blood cells, platelets, and the hemoglobin concentration in your blood.
- Peripheral blood smear (PBS): This procedure provides a visual examination of the size and shape of your blood cells under a microscope.
- Reticulocyte count: This measures the levels of immature red blood cells (reticulocytes) in your bone marrow, which helps determine if your body is producing an adequate amount of red blood cells.
Additionally, your healthcare provider will analyze your blood folate levels using the following criteria:
- Deficient: Less than 2 nanograms per milliliter (ng/mL).
- Borderline: Between 2 ng/mL and 4 ng/mL.
- Sufficient: Greater than 4 ng/mL.
It's worth noting that as vitamin B12 deficiency and folate deficiency can occur concurrently, healthcare providers often conduct a vitamin B12 blood test as well.
Reference:
The Nutrition Source Last reviewed March 2023.
Folate Deficiency Anemia Last reviewed September 12, 2022.
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