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Forms of Folate in Dietary Supplements
Folate is a general term used to describe many different forms of vitamin B9. It is an essential water-soluble vitamin that plays a crucial role in many bodily functions, including DNA synthesis, DNA repair, cell division, and maintaining healthy red blood cells. It is particularly important for women of childbearing age as it helps prevent neural tube defects in the developing fetus. Folate is found naturally in plant foods where it is present in up to five different forms1: • 5-methyl-Tetrahydrofolate (5-MTHF) • 5-formyl-THF • 10-formyl-THF • Tetrahydrofolate (THF) • 5,10-methylene-THF Sources of Folate High sources of folate can be found in plants like collard greens, turnip greens, spinach, broccoli, beans, citrus fruits, and some algae, each providing various levels of formyl and methyl folates. Supplements that combine more than one plant source can offer a full spectrum of folate forms, covering the wide range of needs for folate metabolism. The need for a variety of folate forms has been studied in relation to depression, autism, autoimmune issues, and aging. In each of these conditions, the primary folate receptor may be blocked, requiring the use of alternate folate receptors and transport mechanisms, some of which have a higher affinity for formyl forms of folate.2 Folate Supplement Considerations Various dietary supplement folate products are available. Most formulas contain isolated, synthetic methylated folate. While potentially effective, these supraphysiological dosed supplements carry the potential to mask B12 deficiency or push sensitive patients into hypo- or hyper-methylated states. Supplements derived from natural, food-based folate sources may support a more balanced intervention, and offer multiple forms including both methyl and formyl folate.  Food folate supplements are typically lower dose, and less concentrated than isolated synthetics. Still, they are often preferred by those who desire supplementing vitamins and minerals in a form found in nature, with their whole-food matrix of naturally occurring nutrients and phytoactive components. Folic Acid Folic acid is a synthetic form of folate commonly used in dietary supplements and fortified foods. It is the most widely available form of vitamin B9, the most stable form, and the most well-studied. Folic acid is not found naturally in food but is used to fortify grains, such as bread, pasta, and cereals. The U.S. government began fortifying foods with folic acid in 1998 as part of a public health initiative to reduce the risk of neural tube defects (NTD). This fortification program has successfully reduced, but not eliminated, the incidence in the general population. Folic acid is very stable and easily absorbed, but it must undergo reduction and methylation to become the active form, 5-Methyltetrahydrofolate (5-MTHF). This conversion process requires two enzymes: dihydrofolate reductase (DHFR) and methylenetetrahydrofolate reductase (MTHFR). However, variations in the genes that code for these enzymes are quite common in the population. These variations (single nucleotide polymorphisms, or SNPs) can affect how efficiently those enzymes convert folic acid into 5-MTHF, leading to unmet folate needs and health consequences in some. While fortification has reduced the incidence of NTD, there are emerging concerns about the accumulation of unmetabolized folic acid (UMFA) in the bloodstream, especially in individuals with genetic variations.3 5-Methyltetrahydrofolate (5-MTHF) 5-MTHF, sometimes called methyl folate, can also be synthetically derived for supplement use. It is gaining popularity due to the increased awareness of DHFR and MTHFR gene variants. In such cases, taking a supplement that contains active folate can help bypass the need for conversion. The efficiency and safety of 5-MTHF has been well established in the literature,3 but the question of whether high doses interfere with uptake of natural sources remains to be answered. Folinic Acid (5-Formyltetrahydrofolate) Folinic acid (5-formyl THF) is another form of folate found in dietary supplements. It is more bioavailable than folic acid, as it can be readily converted into the active 5-MTHF form without needing the same enzymatic conversion that folic acid requires. While it is not as well-known as folic acid or 5-MTHF, folinic acid has been used in medical treatments, particularly in cases of cerebral folate deficiency (CFD) associated with depression, autism, autoimmune issues, and aging, and during chemotherapy to mitigate side effects.2,4 Because folinic acid is a formyl folate, the above uses support the case that multiple forms are needed in the diet.  Folate Clinical Takeaways Folate is essential to all aspects of life, and a daily supply is essential for biological processes to run smoothly. While food is the best source of folate and other nutrients, the standard American diet of processed and refined foods leaves the population to rely mostly on folic acid from fortified grains and cereals as their source. Whole foods provide a full spectrum of folate forms that work together to support the body’s needs in a balanced way. However, with the known incidence of genetic variations that slow the activation of folic acid, many people may benefit from supplementation with the active form or a whole-food form that supplies a full spectrum of natural folates to fill the nutritional gap.   Did you know WholisticMatters is powered by Standard Process? Learn more about Standard Process’ whole food-based nutrition philosophy.   Learn More
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A Plant-Based Dietary Supplement Improves Measures of Metabolic Detoxification and Quality of Life
Consumption of a plant-based dietary supplement designed to support the body’s natural detoxification processes resulted in clinically meaningful and beneficial effects on quality of life and biomarkers of metabolic detoxification.
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Nutrition and Potential Health Benefits of Oats
It’s the grain that’s on nearly everyone’s breakfast rotation – oats! Also known as Avena sativa, oats are widely cultivated in North America and Northern Europe. What is considered the “grain” is actually the edible seed of oat grass. While it’s less popular than wheat and rice around the globe, it is highly prized for its nutrient density and widely enjoyed as a cereal grain. The potential health benefits of oats are plentiful, and in this article we will share why.
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The Power of Synergy and Bioavailability in the Whole Food Matrix
The nutrition label does not tell the whole story of nutrient content, bioavailability, and utilization in the body. Nutrients consumed as part of a natural, whole food matrix provide benefits that go beyond those of individual vitamins and minerals. The combination of nutrients, bioactive compounds, and phytochemicals found in the whole food matrix can enhance nutrient absorption, increase bioavailability, and interact synergistically to provide health benefits to the body.
Illustrations display sources of oil: nuts, seeds, plants, fish, and fruits. Above them, text reads
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Saffron: Herbal 101
In this episode of the Medicinal Herbs podcast, host Daina Parent, ND, talks with naturopath and medical herbalist Berris Burgoyne about saffron.
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Garlic Ancient Medicine Unearthed: The Saga of Garlic’s Timeless Healing Power
In this episode of the Medicinal Herbs podcast series, naturopath and herbalist Jo Boyd joins host Daina Parent, ND, to celebrate an “unsung herbal hero” – garlic. This herb has a well-known culinary and medicinal history of use beyond eschewing vampires. Garlic ancient medicine uses extend back to centuries ago and continues to be a main staple in modern times as well for its numerous health benefits.
Three animals eat from bowls; a black cat, an orange and white cat, and a black dog, all focused on their meals on a wooden floor indoors.
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Four Must-Have Herbs for Your Practice
One of the most advantageous qualities of medicinal herbs is their versatility. In this podcast episode, our host Daina Parent, ND, talks with naturopath, herbalist, and acupuncturist Laurence Katsaras about the four herbs he considers essential for any herbalist or practitioner incorporating medicinal herbs in their clinical practice. What do these herbs have in common? Their applications are broad, and their medicinal effects are potent.
A green spike-like plant grows among tall, narrow leaves in a sunlit, lush field, creating a vibrant natural setting.
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