1. SC115 Principles of Nutrition
Unit 2: What happens to the food we eat?
Orville E. Bigelow, M.S., RD
Adjunct Faculty, Department of Science School of General Education Kaplan University

2. This week’s discussion topics:
What happens to the food we eat?
If the body adjusts to digest each food that we eat, why can it react so differently to different foods?
What is the difference between food intolerance and food allergy?
What disorders are related to digestion?

3. What happens to the food we eat?

4. What happens to the food we eat?
Mouth
Stomach
Small intestines
Accessory organs
Liver and gall bladder
Pancreas
Large intestines
We are outta here! Well at least the waste is!

5. Field trip!
Lets take a look at the digestive process:

6. But wait! There is more…
Let’s pull out our ‘binoculars’ and take a closer look at peristalsis and segmentation:

7. What happens to the food we eat?
Is all food the same?
Carbohydrates (4 calories per gram)
What do we use it for?
Proteins (4 calories per gram)
Fats (9 calories per gram)

8. If the body adjusts to digest each food that we eat, why can it react so differently to different foods?

9. If the body adjusts to digest each food that we eat, why can it react so differently to different foods?
Because different foods provide different nutrients
An overabundance of nutrients may not always be healthy…

10. Let’s take a look at protein
Protein is broken down to amino acids
Amino acids are used by our cells to make their own proteins to carry out the functions of our bodies
The proteins are made through ‘protein synthesis’ a process by which our DNA tells our cells how to make the protein
Lets take a closer look at the process:

11. What happens if we get too much protein?
Proteins used when carbohydrates are not available for energy
Excess proteins converted to fat

12. The price of a high fat diet…
Chronic disease
Obesity
Diabetes
Cardiovascular disease (heart attacks & strokes)
High blood pressure (hypertension or HTN)
Renal disease

13. Lets take a field trip to the arteries!
What is atherosclerosis?

14. What is the difference between food intolerance and food allergy?

15. What is the difference between food intolerance and food allergy?
A food intolerance is the inability to eat and/or digest a specific food due to the complications it may cause
Lactose intolerance
A food allergy can be a life threatening problem due to proteins from a foreign source getting into your blood stream and causing an allergic reaction
Allergy to milk proteins

16. What disorders are related to digestion?

17. What disorders are related to digestion?
Burping
Ulcers
Choking
Diarrhea and vomiting
Heartburn

18. One last field trip!
Just what is that ‘burning sensation’?? Let’s get to the ‘heart of the matter’!

19. The end! See you next week!