Protein reference intakes

From such studies, the mean requirement for vitamin Be was estimated at 13 /rg per g of dietary protein. Reference intakes (see Table 9.6) were based on 15 to 16/rg per g of dietary protein. 

These studies suggest a mean requirement of 13 pg of vitamin Bg per gram of dietary protein reference intakes are based on 15-16 pg per gram of protein. At average intakes of about 100 g of protein per day, this gives an RDA of 1.4-1.6 mg of vitamin Bg. More recent depletion/repletion studies, using more sensitive indices of status, in which subjects were repleted with either a constant intake of vitamin Bg... 

Dietary Reference Intakes for Energy and Protein in Healthy Children... 

Data from Food and Nutrition Board, Institute of Medicine. Dietary proteins and amino acids. Reference Intakes for Energy, etc. Washington, DC National Academy Press (2002) 10 1-143 (see also Matthews (2006)). 

Dietary Reference Intake (DRI) of Cu, 17-18% of the DRI of K, P, and Fe, and between 5 and 13% of the DRI of Zn, Mg, and Mn (Table 5.1). Potatoes are generally not rich in Ca, but can be a valuable source of trace elements, such as Se and I, if fertilized appropriately (Eurola et al., 1989 Poggi et al., 2000 Turakainen et al., 2004 Broadley et al., 2006). Moreover, since potato tubers have relatively high concentrations of organic compounds that stimulate the absorption of mineral micronutrients by humans, such as ascorbate (vitamin C), protein cysteine and various organic and amino acids (USDA, 2006), and low concentrations of compounds that limit their absorption, such as phytate (0.11-0.27% dry matter Frossard et al., 2000 Phillippy et al., 2004) and oxalate (0.03% dry matter Bushway et al., 1984), the bioavailability of mineral elements in potatoes is potentially high. 

Institute of Medicine. Food and Nutrition Board 2002. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids , pp. 8-97. The National Academies Press, Washington, DC. 

Institute of Medicine 2002. Dietary reference intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids. Food and Nutrition Board. National Academy Press, Washington, D.C. 

Pyridoxine (vitamin Be) requirements vary with protein intake the daily Average Requirement is 13 micrograms/ g protein intake and the Population Reference Intake is 15 micrograms/g protein intake. In adults this translates into a daily Average Requirement of 1.3 mg/day for men and 1.0 mg/day for women, and a Population Reference Intake of 1.5 mg/day for men and 1.1 mg/day for women. 

RDA for vitamin E was increased in the year 2000 by 50% from 10 to 15 mg/day for adults by the U.S. Food and Nutrition Board.Most European reference intakes are related to the polyunsaturated fatty acid intake. The changes in the United States were accompanied by some debate, critics arguing that this amount could not be met by the usual North American diet. For infants up to 6 months, an AI of 4mg/day was proposed, for infants 7 to 12 months an AI of 5mg/day and the RDA for children 1 to 18 years was set at 6 to 15 mg/day, dependent upon age. Another departure in the newer recommendations was that the daily requirement he met by RRR-a-tocopherol alone as the other forms of vitamin E are not converted to a-tocopherol and are poorly recognized by the a-tocopherol transfer protein in the liver. 

For Canada and the United States, the National Academy of Sciences (NAS) Institute of Medicine issued an updated report Dietary Reference Intakes for energy, carbohydrates, fiber, fat, protein, and amino acids or the Macronutrient Report establishing dietary fat goals at a wider range, from 20% up to 35% of calories, or from low to moderate amounts of fat for a healthy diet [10]. Although there were no specific values set for monounsaturated fatty acids (MUFA), the NAS report... 

Current Dietary Reference Intakes may underestimate protein needs for individuals with IMD. 

Sources Dietary Reference Intakes for Calcium, Phosphorous, Magnesium, Vitamin D, and Fluoride (1997) Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin Folate, Vitamin B, Pantothenic Acid, Biotin, and Choline (1998) Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids (2000) Dietary Reference hitakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc (2001) Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (2002/2005) and Dietary Reference Intakes for Calcium and Vitamin D (2011). These reports may be accessed via www.nap.edu... 

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