Diet Fat and Lipids Questions

I’m working on a biology discussion question and need an explanation and answer to help me learn.

• Harvard Medical School article: The truth about fats: the good, the bad, and the in-between 
• USDA (US Department of Agriculture) article: Saturated, Unsaturated, and Trans Fats
• NIH (National Institutes of Health) “News in Health” article: The Skinny on Fat (The Good, the Bad, and the Unknown) 
• Find additional reliable resources as needed
• Compose and post your answers to the questions below.
• Review the responses of your fellow classmates and post your comments and reactions as appropriate. You are not expected to comment on everyone’s postings, only those that interest you (but a minimum of two). You should also maintain your thread by replying to questions and substantive comments of your classmates. 

Questions

1. Why are the four major groups of dietary fat can be classified in this particular order (30-50 words)?

1. Polyunsaturated fats containing omega-3 fatty acids
2. Monounsaturated fats and polyunsaturated fats that do not contain omega-3s
3. Saturated fats
4. Trans-fats

2. Using your knowledge of lipid structure and properties and any other scientifically reliable online or printed resources, create a ~150-word explanation of how different types of dietary fat affect our cardiovascular health. (Hint: Use such key terms as “cholesterol,” “HDL,” “LDL,” and “arteries.”) Make sure to use your own words and cite outside sources that you have used.

3. In ~100 words indicate the major sources of fat in your diet and characterize them in terms of healthy and unhealthy.

• If your fat diet is not “heart-healthy,” provide specific recommendations on how to increase your consumption of healthy fats and decrease your consumption of unhealthy fats. Recommend specific foods. Take into account your taste preferences.
• If your fat diet is mostly “heart-healthy,” provide specific recommendations on how to increase the consumption of healthy fats and decrease the consumption of unhealthy fats for a friend or a relative. Take into account that person’s taste preferences.