Some bands are sold separately. Apple Watch Series 2 has a water resistance rating of 50 meters under ISO standard 22810:2010. This means that it may be used for shallow-water activities like swimming in a pool or ocean. It is also safe to wear it while showering or in a hot tub.
B12. Vitamin B12 is a water-soluble vitamin. This means it's not stored in the body and you must consume it every day. If you take in too much of it, your body will simply dispose of the excess in your urine. Strict vegans who eat no animal products whatsoever might need to take supplements on a regular basis.n adults, too much iron can increase the risk of heart disease and other health problems. To prevent problems, always talk to your doctor before taking iron supplements. Women 19 to 50 years of age need 18 mg of iron per day. Men over 19 need 8 mg per day.
1 Injecting vitamin B12 as a shot, as well as taking through the nose or by mouth, is effective for treating low red blood cell counts caused by poor absorption of vitamin B12. 2  Vitamin B12 deficiency. 3  Taking vitamin B12 by mouth, through the nose, or as a shot is effective for treating vitamin B12 deficiency.t can also be made in a laboratory. Vitamin B12 is used for treating and preventing vitamin B12 deficiency, a condition in which vitamin B12 levels in the blood are too low. It is also used to treat pernicious anemia, a serious type of anemia that is due to vitamin B12 deficiency and is found mostly in older people.