âTennis players often have problems with their knees, ankles, shoulders, hips, and wrists, so they really need to spend some time on those areas to get the tension out.â. This means that youâll be more likely to keep on truckinâ if you practice your poses off the court.
Normal value ranges for vitamin B12 vary slightly among different laboratories and can range anywhere between 200 to 900 pg/mL. The general consensus is values less than 200 pg/mL constitute a B12 deficiency.
If we do the math: if we need 4-20.7 mcgs/day of B12, we have to take anywhere between 400-2,070 mcgs/day to get what we need. With this in mind, it would then be safe to say that most people can prevent a deficiency by taking 500-2,000 mcg/day of oral vitamin B12 (best taken sublingually).