The Science of Nutrition Flashcards
1
Q
Scientific theory is based on…
A
Scientific evidence and reasoning
2
Q
A well conducted experiment requires…
A
- Quantifiable data
- Appropriate experimental population
- Appropriate number of subjects - Is the population large enough and pertinent to the study?
- Suitable study duration
- PROPER statistical analysis of results
- Proper controls - Can we ensure that the population ate or drank what we said they did?
- Publication of results after peer review
3
Q
What are observational studies for nutrition?
A
- include epidemiology which looks at diet, health, and disease patterns in a population
- not as strong as RCTs but are useful for diet due to long term nature
4
Q
Correlation does not equal…
A
Cause and effect
5
Q
Increased saturated fat is correlated with…
A
CHD
6
Q
Most nutrition advice is…
A
- based on poor evidence and written by someone with poor credentials
7
Q
What is the problem with dietary supplements?
A
- Contaminated
- Not regulated the same way drugs are
- Certain supplements like B12 and vitamin D may be required for some people but usually not required
- Often misleading
- Poor scientific backing
- Ex. Glucosamine and Chondroitin supplements for joints not effective for OA pain
8
Q
What is the correlation between chocolate and CV disease?
A
- chocolate (cocoa nibs and dark chocolate) is linked with lower rates of CV disease and lower BP
- flavanols (also found in red wine, apples, and tea) have this effect
- reduces inflammation
9
Q
Why is eating a variety of food important?
A
No one food can provide all nutrients that the body needs
