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Naproxen

Naproxen & Folic Acid

Depletes Folic Acid. This medication is commonly used for Pain Management

Why Naproxen affects Folic Acid

Regular use of non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen may decrease your folic acid (folate) levels. This is because NSAIDs can interfere with how your body processes folate. If you take OTC pain relievers regularly, consider folate supplementation to avoid potential deficiencies.

Clinical Evidence

Baggott JE, Morgan SL, Taisun HA, Vaughn WH, Hine RJ. Inhibition of folate-dependent enzymes by non-steroidal anti-inflammatory drugs. Biochem J. 1992;282:197-202. Boullata, Joseph and Vincent Armenti. Handbook of Drug-Nutrient Interactions. Totowa, New Jersey: Humana Press, 2004.

Recommended Replacement

Folate (.2mg as L-5-Methylfolate)0.34 DFE

Related Health Impacts

  • Stroke & Heart Disease Risk

    Low folate status contributes to elevated homocysteine, a metabolite that has been associated with endothelial dysfunction, arterial stiffness, and a higher risk of stroke and coronary heart disease. Large observational studies consistently show that individuals with higher homocysteine levels have greater rates of cardiovascular events, and folate intake is one of the key nutritional determinants of homocysteine. Clinically, folic acid supplementation (often combined with vitamins B6 and B12) can lower homocysteine and appears to modestly reduce stroke risk in some populations, making the identification and correction of folate deficiency an important part of broader cardiovascular risk reduction.

  • Birth Defects During Pregnancy

    Folate deficiency in the periconceptional period significantly increases the risk of neural tube defects (NTDs) such as spina bifida and anencephaly, because adequate folate is required for proper closure of the embryonic neural tube in the first month of pregnancy. Large observational datasets and randomized trials have shown that appropriate folic acid supplementation before conception and in early pregnancy can reduce NTD risk by roughly 50–70% in the general population, with even greater risk reduction in women with a prior NTD‑affected pregnancy. The practical implication is that all women of childbearing potential, not just those actively planning pregnancy, are typically advised to maintain adequate daily folic acid intake so that red‑cell folate stores are sufficient well before conception occurs.

  • Depression & Mood Changes

    Folate deficiency has been associated with a higher risk of depressive symptoms, irritability, and other mood disturbances, likely through its role in one‑carbon metabolism, monoamine neurotransmitter synthesis, and methylation processes in the brain. Clinical and epidemiologic studies have found that people with low folate or elevated homocysteine are more likely to experience major depression, and lower folate status has been linked to poorer response to certain antidepressant medications. The encouraging clinical point is that, in folate‑deficient individuals, correcting folate status (often with folic acid or methylfolate, and alongside vitamin B12 when indicated) may improve mood symptoms and, in some cases, enhance antidepressant treatment response, especially when combined with comprehensive psychiatric and lifestyle interventions.

  • Anemia & Fatigue

    Folate (folic acid) deficiency impairs DNA synthesis in rapidly dividing cells, which leads to megaloblastic anemia characterized by enlarged red blood cells, fatigue, pallor, and sometimes shortness of breath. Population studies have shown that folate deficiency and macrocytosis can be present for months before overt symptoms appear, and in some cohorts, up to roughly one quarter of anemic adults had an underlying folate or B12 deficiency rather than iron deficiency alone. The encouraging clinical point is that, once identified, folate‑responsive megaloblastic anemia often improves within weeks of adequate folic acid repletion, with reticulocyte counts rising in about 5–7 days and hemoglobin recovering more gradually over several weeks.

Other Nutrients Affected by Naproxen

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