Impaired immune response is a weakened ability of the body to fight off infections, diseases, and foreign substances. It is caused by nutritional deficiencies, chronic diseases, medications, stress, and genetic factors that compromise immune cell function. The Vitamin E (Tocopherol) test is the most important nutritional test for assessing immune function because vitamin E deficiency significantly weakens immune response.
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Impaired immune response is caused by a combination of nutritional deficiencies, chronic medical conditions, medications, and lifestyle factors. Vitamin E deficiency, particularly low Beta Gamma Tocopherol levels, directly weakens immune cell function and reduces the body's ability to fight infections. Other contributing factors include vitamin D deficiency, zinc deficiency, chronic diseases like diabetes or kidney disease, immunosuppressive medications, excessive stress, lack of sleep, poor diet, and aging, all of which can compromise the immune system's effectiveness.
The Vitamin E (Tocopherol) test is the most important nutritional blood test for impaired immune response because it directly measures vitamin E levels that are essential for immune cell function and protection against infections. This test specifically evaluates Beta Gamma Tocopherol, which plays a crucial role in maintaining T-cell function and antibody production. Low vitamin E levels can significantly increase susceptibility to infections and slow recovery from illness. While no single blood test diagnoses overall immune function, the Vitamin E test identifies a key nutritional deficiency that can be corrected to improve immune response.
You should get tested if you experience frequent infections such as colds, flu, or respiratory infections that occur more than 4-6 times per year, or if infections take longer than usual to resolve. Other signs include slow wound healing, recurrent skin infections, persistent fatigue despite adequate rest, frequent digestive issues, or if you have a chronic condition like diabetes or are taking medications that may affect immunity. Testing is especially important if you notice a pattern of getting sick more often than others around you or if minor infections seem to hit you harder than they should.
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What this means
Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.
Recommended actions
Increase resistance or strength training
Prioritize 7–8 hours of quality sleep per night, try to reduce stress
Include more zinc- and magnesium-rich foods (like shellfish, beef, pumpkin seeds, spinach)
Consider retesting in 3–6 months
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