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.
Vitamin B12. How Much You Need: 2.4 ug/day and 6-9 ug/day for the elderly. Why You Need It: Vitamin B12 is required by the body for enzymatic reactions that create energy in the body. What to Eat: Animal products are the best source for vitamin B12; for instance, steak and beef contain 1.35 ug per 3 ounces.