Simvastatin can affect this through 2 different nutrient pathways: Vitamin E, Vitamin D3. This medication is commonly used for High Cholesterol.
Each nutrient below contributes to this impact through a different mechanism.
In both experimental models and human reports, vitamin E deficiency has been shown to blunt immune defenses, particularly T‑cell–mediated responses, leading to greater vulnerability to infections. A classic case of severe vitamin E deficiency from intestinal malabsorption demonstrated markedly reduced delayed‑type hypersensitivity and impaired T‑cell interleukin‑2 production that normalized after vitamin E repletion, offering direct proof that this deficiency can cause reversible T‑cell dysfunction in humans. In older adults, vitamin E supplementation has been associated with enhanced naïve T‑cell function, better resistance to influenza in animal studies, and a lower risk of upper respiratory infections in nursing‑home residents, suggesting that maintaining adequate vitamin E status may be an underappreciated strategy to support immune resilience across the lifespan.
Kowdley KV, Mason JB, Meydani SN, Cornwall S, Grand RJ. Vitamin E deficiency and impaired cellular immunity related to intestinal fat malabsorption. Gastroenterology. 1992 Jun;102(6):2139-42. Lewis ED, Meydani SN, Wu D. Regulatory role of vitamin E in the immune system and inflammation. IUBMB Life. 2019 Apr;71(4):487-494. Meydani SN, Han SN, Wu D. Vitamin E and immune response in the aged: molecular mechanisms and clinical implications. Immunol Rev. 2005 Jun;205(1):269-84. Dang H, Li J, Liu C, Xu F. The Association Between Vitamin E Deficiency and Critically Ill Children With Sepsis and Septic Shock. Front Nutr. 2021 Jun 16;8:648442.
Vitamin D acts as an immunomodulatory hormone, so deficiency has been associated with higher rates of respiratory infections and a tendency toward more frequent or severe viral and bacterial illnesses. Observational studies also link low 25‑hydroxyvitamin D levels with increased risk or activity of several autoimmune conditions, including multiple sclerosis, type 1 diabetes, and autoimmune thyroid disease, suggesting that inadequate vitamin D may push the immune system toward attacking the body’s own tissues. Clinically, maintaining sufficient vitamin D status is viewed as one relatively simple strategy that may help support balanced immune responses and, in some contexts, may modestly reduce infection risk or autoimmune flare frequency when combined with standard medical care.
Martens PJ, Gysemans C, Verstuyf A, Mathieu AC. Vitamin D's Effect on Immune Function. Nutrients. 2020 Apr 28;12(5):1248. Aslam J, Sohailuddin M, Abbas SM, Shaikh MTA, Saleem S, Mubeen A, Ahmad B, Haseeb M, Mzahri EUH. The Schematic Assessment of Vitamin D Deficiency in Relation to Autoimmune Disorders and Its Implications in Internal Medicine. Cureus. 2025 Apr 24;17(4):e82949. Jolliffe DA, Camargo CA Jr, Sluyter JD, Aglipay M, Aloia JF, et al. Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials. Lancet Diabetes Endocrinol. 2021 May;9(5):276-292. Simpson, S., van der Mei, I., Stewart, N. et al. Weekly cholecalciferol supplementation results in significant reductions in infection risk among the vitamin D deficient: results from the CIPRIS pilot RCT. BMC Nutr 1, 7 (2015). Kriegel MA, Manson JE, Costenbader KH. Does vitamin D affect risk of developing autoimmune disease?: a systematic review. Semin Arthritis Rheum. 2011 Jun;40(6):512-531.e8.
Some side effects may be linked to nutrient depletion caused by this medication.
While studies demonstrate statins effectively lower LDL-C and apoB, research suggests they may also reduce CoQ10 levels. This vital antioxidant plays a crucial role in mitochondrial function, and deficiency can impact brain, muscle, kidney, and heart health. CoQ10 supplementation could be a helpful way to mitigate a potential deficiency when taking a statin therapy.
Statins can lead to elevated liver enzymes, which may increase the risk of liver damage. Studies suggest that liver injury can be associated with statins and potent antioxidants like NAC with its anti-inflammatory action is associated with improved liver circulation, hepatoprotective, and therapeutic in liver conditions and disease.
Research has found vitamin E supplementation significantly increased the antioxidative capacity of LDL, which was partially abolished by statin therapy. Supplementation with vitamin E should be considered for its antioxidant and anti-inflammatory properties that may help reduce the oxidation of LDL and help protect against cardiovascular diseases.
Magnesium supplements and statin medications both inhibit the HMG-CoA and have complementary effects to reducing the production of cholesterol. Magnesium has functions that are crucial to cardiovascular and general health as a catalyst to 300 healthy reactions in the body and 100 in the heart. The association between Magnesium supplementation and statins is also able to offer some protection for painful myopathy as a side effect induced by statins, which may also boost patient compliance. According to research, patients who received the statin drug atorvastatin along with a magnesium treatment had significantly increased levels of serum magnesium, HDL (the good cholesterol), as well as significantly decreased levels of total cholesterol, LDL cholesterol, and triglycerides.
Statins can lead to elevated liver enzymes, which may increase the risk of liver damage. Studies suggest that liver injury can be associated with statins and potent antioxidants like alpha lipoic acid with its anti-inflammatory action is associated with improved liver circulation, hepatoprotective, and therapeutic in liver conditions and disease.
Statin therapy can lead to side effects such as statin-associated muscle symptoms (SAMS), rhabdomyolysis myopathy, and myalgia. Research has demonstrated vitamin D is associated with deficient and insufficient status in patients taking statin drug therapy. It has also found vitamin D to be successful in preventing muscle-related side effects like SAMS. Supplementation with vitamin D should be considered to avoid a potential deficiency and to help protect against muscle related side effects.