Inadequate dietary intake
A randomised controlled trial published in Clinical Infectious Diseases demonstrated that Thymosin Alpha-1 treatment in severe COVID-19 patients reduced 28-day mortality by 30% compared to standard care alone.17 While this was acute disease, not long COVID, it confirms the biological plausibility of the immune mechanism
[6] [3] [10] A mild deficiency may not cause any discernible symptoms, but moderate deficiency can cause various symptoms, such as feeling tired, lightheadedness, headaches, cold intolerance, pale skin, sore tongue, upset stomach, loss of appetite, hair and skin color changes, numbness or tingling (pins and needles) of the fingers and toes, and tinnitus, and vision, cognitive or psychological problems
expected benefit with a reduction in percentage)