NTR Week 1/2

Food, Nutrition, and Health

Nutritional science

The study of nutrients in food and the body

Nutritional science is also known as the process by which we…

Ingest, digest, absorb, transport, utilize, and excrete nutrients.

Health

A state of complete physical, mental, and social well-being and not 

merely the absence of disease and infirmary.

Determinants of health

• Genetics

• Socioeconomic status / environment

• Lifestyle / behaviors

What is the relationship between food, nutrients, calories, and phytochemicals.

What are some SOCIAL determinants of health?

• Economic stability

• Societal and community context

• Neighborhood and built environment

• Education access and quality

• Healthcare access and quality

Food insecurity

Food desert

Which determinants of health are outside our control?

Epigenetics

Nutrigenomics

Nutrients

What are the 6 categories of essential nutrients and which are macros / micros?

Macronutrients:

• Carbs

• Lipids (fat)

• Protein

• Water

Micronutrients:

• Vitamins

• Minerals

Fiber

Phytochemicals

Calories

How many kcal/gram do each macro contribute to our bodies energy source?

• Carbs - 4kcal/gram

• Protein - 4 kcal/gram

• Fat - 9 kcal/gram

What is the ONLY other source of energy for body functions that is NOT a nutrient and how much does it contribute?

Alcohol, 7kcal/gram

Formula for finding nutrient ratios in food

Grams x _____kcal/gram / total calories = _____%