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.
No toxic or adverse effects have been associated with large intakes of vitamin B12 from food or supplements in healthy people. Doses as high as 2 mg (2,000 Î¼g) daily by mouth or 1 mg monthly by intramuscular (IM) injection have been used to treat pernicious anemia without significant side effects (84).