The amount of vitamins and minerals humans need per day varies based on age, sex and type of nutrient, according to WebMD. Vitamins and minerals are measured by the recommended daily allowance, or RDA, and the upper tolerable limit, or UL. The RDA is what humans should optimally eat every day, while the UL is what can be consumed daily without health risks.Know More
The RDA varies based on each nutrient. WebMD explains that adults need 1,000 milligrams per day of calcium with an upper limit of 2,500 milligrams per day. Humans normally need 400 micrograms of folic acid per day. Men should have 8 milligrams of iron per day, but women need 18 milligrams of the mineral. Humans should consume somewhere around 1,500 milligrams of sodium per day, with an upper limit of 2,300 milligrams.
Vitamins are sometimes measured in international units, or IU. WebMD states that men should consume 3,000 IU of vitamin A daily, whereas women need 2,310 IU. Men should get 90 milligrams of vitamin C, and women need 75 milligrams per day.
ConsumerLab.com reveals that humans need 120 micrograms of vitamin K daily. They should get around 600 IU of vitamin D every day. Some upper limits of vitamins and minerals are established for taking supplements or getting these nutrients synthetically. Other nutrients have no upper limits when they are consumed naturally in foods.Learn more in Nutritional Amounts & Limits
WebMD states that the amount of protein a person needs each day varies based on age and gender. Generally, 10 to 35 percent of the daily caloric intake should be derived from protein.Full Answer >
Women under age 50 need 25 grams of fiber daily, and men under age 50 need 38 grams of fiber each day; however, most Americans eat about 15 grams of fiber each day. Fiber can't be digested, so it adds bulk to the stool and slows down gastric emptying.Full Answer >
The recommended amount of potassium a person needs is 4,700 milligrams per day for people over age 18, according to WebMD. Other factors, such age or breastfeeding, may increase or decrease the daily amount needed.Full Answer >
Exact water intake needs vary based on personal factors, but Mayo Clinic reports that men need approximately 3 liters (3000 mL) per day, and women need approximately 2.2 liters (2200 mL). These standards are based on a healthy person living in a temperate climate. Additionally, the figures are based on total beverage consumption, which can include liquids other than water.Full Answer >