They want to make sure that a candidate has the necessary skills and is a good culture fit before employing them directly. Employee turnover is expensive â and if a contractor is terminated, the staffing agency is responsible for the unemployment costs. 2. They are unsure of their hiring budgets.
Suggested intake: The recommended intake of vitamin D for males up to 50 years old is 200 IU (or 5 micrograms) and increases 200 IUs every 20 additional years.
Vitamin D Intake. The recommended amounts of vitamin D for adults are as follows: 1  For people over 50 (and postmenopausal women): 400-800 i.u. of vitamin D per day. 2  For people over 65 or 70, at least 600 i.u. is usually recommended. 3  For people 25-50 years old (and premenopausal women): 400 i.u. of vitamin D per day.he recommended amounts of vitamin D for adults are as follows: 1  For people over 50 (and postmenopausal women): 400-800 i.u. of vitamin D per day. 2  For people over 65 or 70, at least 600 i.u. is usually recommended. 3  For people 25-50 years old (and premenopausal women): 400 i.u. of vitamin D per day.