subsetFoodRichIn {NutrienTrackeR}

Find nutrient-rich foods

Description

This function selects the foods with the highest amount of a given nutrient from a food composition database.

Usage

subsetFoodRichIn(nutrient_name, food_database = "USDA", food_group = NULL, n = 10)

Arguments

nutrient_name

character vector indicating the name of the nutrient of interest.

food_database

character vector indicating the food database to be used. Possible values are: "USDA", "CIQUAL", "BEDCA", "STFCJ".

food_group

character vector indicating the food group(s) of interest. NULL indicates that all food groups are considered.

n

numeric value indicating the number of foods to be selected.

Value

A subset from the food composition database containing the foods with the highest amount of the nutrient of interest.

Examples

## Load data
data(food_composition_data)

## Get foods rich in niacin
subsetFoodRichIn(nutrient_name = "Niacin (mg)", food_database = "USDA", n = 5)
subsetFoodRichIn(nutrient_name = "Niacin (mg)", food_database = "CIQUAL", n = 5)
subsetFoodRichIn(nutrient_name = "Niacin (mg)", food_database = "BEDCA", n = 5)

## Get foods rich in niacin from CIQUAL within the group "diary products and deserts"
subsetFoodRichIn(nutrient_name = "Niacin (mg)", food_database = "CIQUAL", n = 5, 
                 food_group = "dairy products and deserts")