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 about Nutritional Amounts & Limits
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 >
According to WebMd, the amount of calories a person needs each day is based on his weight, age, gender and whether he wants to lose, gain or maintain his weight. To maintain weight, women ages 19 to 30 with a body mass index of 21.5 need 1800-2000 calories if they lead relatively inactive lifestyles. Males in the same age range with a BMI of 22.5 need 2400-2600 calories.Full Answer >
A little bit of salt each day is important to replace amounts lost through sweat and to supply the body with necessary nutrients, according to WebMD. However, more than about one teaspoon of salt each day can increase a person's risk of high blood pressure.Full Answer >
Mayo Clinic explains the number of calories an individual needs to eat per day varies based on body size and composition, gender, age and physical activity levels. Each person needs to first discover his basal metabolic rate to configure his optimal daily caloric needs.Full Answer >