Nutrition

Simple nutrition facts wrapper as an NPM module.

Installation

npm install nutrition --save

Usage

// import for ES6
import * as nutrition from 'nutrition'

const opts = {
  weight: 65,
  height: 1.75
}
const value  = nutrition.bmi(opts)


// OR import for ES5
var nutrition = require('nutrition')

var opts = {
  weight: 65,
  height: 1.75
}
var value  = nutrition.bmi(opts)

Methods

bmi(opts)

BMI (Body Mass Index) is a measurement of body fat based on height and weight that applies to both men and women. It can be used to indicate if you are overweight, obese, underweight or normal.

opts is an object with properties containing formula values

The following arguments are expected:

• weight : Subject weight (default is kilograms)
• height : Subject height (default is meters)
• eng :
  • If true then weight is used in pounds, otherwise in kilograms.
  • If true then height is used in inches, otherwise in meters.

bmiClass(bmi)

Returns the class from Body Mass Index value. Possible results are:

• Underweight, Normal, Overweight, Obese Class 1, Obese Class 2, Morbid Obesity

bmr(opts)

BMR (Basal Metabolic Rate) is the amount of energy expended while at rest in a neutrally temperate environment.

opts is an object with properties containing formula values

The following arguments are expected:

• weight : Weight in kilograms
• height : Height in meters
• age : Age in years
• woman : True if subject is a woman, False if men. (Default is true)

dailyCalories(opts)

This method also know as the Harris–Benedict equation is a method used to estimate individual's daily kilocalorie requirements based on a basal metabolic rate (BMR).

opts is an object with properties containing formula values

The following arguments are expected:

• bmr : Float obtained from bmr method
• exerciseType : Exercise frequency. Use one of the following options:
  • 'No' if little to no exercise
  • 'Light' if light exercise (1-3 days per week)
  • 'Moderate' if medium exercise (3-5 days per week)
  • 'Heavy' if heavy exercise (6-7 days per week)
  • 'Full' if extra heavy exercise (twice per day)

Next steps

• Set of healthy methods
• Coverage

Contributing

Please see CONTRIBUTING.

LICENSE

MIT, see LICENSE.