approximate rates of protein turnover in body cells

RNIs have also been set for children from birth to 10 years and for pregnancy and lactation. The Reference Nutrient Intake (RNI) for protein for adults is 0.75g protein per kg body weight per day this equates to 56g/day and 45g/day for men and women of average body weights (75 and 60kg respectively). Smaller amounts are also found in grains and cereals. Good food sources of protein are meat, fish, dairy products, eggs, nuts and soya, beans, peas and lentils. Protein is needed for growth and repair of body tissues and is especially important for healthy muscles and bones, particularly for children. For people exercising at a high level, having some protein soon after a training session can help muscles rebuild. People who do some physical activity, like going for a run or to an exercise class are unlikely to need any extra protein.It is important for health to include a range of protein-containing foods and we are recommended to eat more plant-derived protein foods.Top contributors to protein intakes in the UK are meat and meat products, cereals and cereal products and milk and milk products.The RNI is 0.75g of protein per kg bodyweight per day for average-weight adults (~56g/day for men and ~45g/day for women depending on bodyweight).In the UK, average intakes of protein are above the Reference Nutrient Intake (RNI) including in vegetarians and vegans.Protein is an energy source and provides 4kcal per gram.Our protein needs change across the life course. Protein is a macronutrient that we need for growth, repair and maintenance in the body, especially for bones and muscles.

Approximate rates of protein turnover in body cells