[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
The injection site should be cleaned with alcohol and allowed to dry completely before injection to prevent stinging and ensure proper sterilization
Finally, although the correlations between the metabolome and microbiome were established using robust statistical analyses, there was limited statistical power and there are also limitations to the statistical approaches used herein (e.g., log transformation to resolve non-normal distribution and/or heteroscedasticity 103 )
Again, please be aware that this new Guideline is aimed at the current Covid-19 pandemic