A National Kidney Foundation (US) interactive web-based tool to calculate glomerular filtration rate (GFR). Results given in the following equations: CKD-EPI creatinine equation (2009), CKD-EPI creatinine-cystatin equation (2012), CKD-EPI cystatin C equation (2012) and the MDRD study equation.

This PEN® tool for professionals calculates the resting metabolic expenditure (REE) and total energy expenditure (TEE) for normal and overweight adults.

  2016-03-30 – Calculations/algorithm

This PEN® tool for professionals calculates the resting metabolic rate for mechanically ventilated, critically ill adults.

This web page has growth charts to monitor the growth of preterm infants. The growth charts accommodate the World Health Organizations Growth Standard, reflecting actual age of the infant, instead of completed weeks. The web page includes charts for boys and girls, an actual-age calculator, a size for gestational-age calculator, bulk calculator, phone app and background literature. Available in English, French, Croatian, Greek, Polish, Spanish and Arabic.

This PEN® tool for professionals calculates body mass index (BMI) for children.

    2016-03-30 – Calculations/algorithm

This PEN® tool for professionals calculates the resting metabolic rates (REE) for critically ill, mechanically ventilated patients, 60 years and older and obese.

  2021-02-17 – Calculations/algorithm

Cardiovascular risk assessment guidelines for adults.

A collection of websites related to alcohol intake.

     2023-10-03 – Website

The 'Malnutrition Universal Screening Tool' from BAPEN (British Association for Parenteral and Enteral Nutrition) is a five-step screening tool for professionals that identifies adults who are at risk of malnutrition, are malnourished, or are obese. Validated for use in hospitals, community and other care settings.

A collection of dietary reference values.

         2022-04-19 – Practice Guideline