Cholesterol Triglycerides and lipids

Cholesterol and Triglycerides: First, it helps to understand exactly what blood lipids are. Both cholesterol and triglycerides in the blood are called lipids. When blood lipid levels are high, this is called dyslipidemia.

Cholesterol: Cholesterol is a waxy, fat-like substance that is found in the tissue of humans and other animals. It plays important roles in the body. Our livers produce all the cholesterol that we need for these important functions. We also get cholesterol from the animal foods we eat such as meats, poultry, eggs, and dairy products. High blood cholesterol levels can contribute to atherosclerosis, or clogging of the arteries.

Triglycerides: Triglycerides, or blood fats, are the fats that circulate through the bloodstream along with cholesterol. Your body gets triglycerides from food (especially meats and plant oils) and also makes triglycerides on its own. As with cholesterol, you need just the right amount of triglycerides. High triglyceride levels increase your risk of heart and blood vessel disease.

Cholesterol and triglycerides are both lipids, but have very different shapes. Cholesterol is made up of connected rings of carbon atoms and also is called a “sterol”. Triglycerides are chains of carbons called “fatty acids”, attached at one end to a carbon backbone. We all know that oil doesn’t mix with water! Our blood lipids are just like oil. In order to circulate in the watery blood, these lipids (cholesterol and triglycerides) are packaged along with proteins. These packages are called lipoproteins.

Lipids and Cholesterol

What are blood lipids?

  • Lipids are fat-like substances found in your blood and body tissues.
  • Your body needs small amounts of lipids to work normally.

How are my blood lipids measured?

  • A blood test called a complete lipid profile is done.
  • It is recommended that this test be done after an overnight fast.

What happens if my lipids are too high?

An excess amount of blood lipids can cause fat deposits in your artery walls, increasing your risk for heart disease.

Are there different kinds of lipids?

Cholesterol is the main lipid. It is made up of different parts such as:

  • LDL cholesterol, or “bad” cholesterol, is the main lipid that causes damaging buildup and blockage in your arteries.
  • HDL cholesterol is actually a “good” type of cholesterol that helps to prevent cholesterol from building up in your arteries.
  • Triglyceride is another lipid that may increase your risk for heart disease.

What are healthy lipid levels?

  • Your total cholesterol should be less than 200.
  • Your HDL cholesterol should be 40 or higher.
  • Your LDL cholesterol should be less than 100. Ask your doctor.
  • Your triglyceride level should be less than 150.

If my lipids are not at the right levels, what can be done to improve them?

  • Your doctor may recommend that you follow a diet low in saturated fats and cholesterol.
  • You may also need to increase your activity level.
  • In some cases, you may also need to take a medication to help lower your lipid levels.

Lipids in Your Blood

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  1. heavenly sword says:

    There seem to be some confusion between cholesterol and fat, what’s the difference and is cholesterol beneficial or harmful? Please explain your answer.

  2. naserestuty1 says:

    amazing really really amazing
    thank you so much


  3. carcasman says:

    It is a great documental!
    It helped me a lot.


  4. QbnSuperman says:

    absolutely fantastic lecture.
    thank you very much.
    -medical student.

  5. jenoconnor325 says:

    this helped me with my studies! thank you!

  6. kongcreteflip says:


  7. Great lecture. Thank you very much!!!

  8. mnassar18 says:

    thank you a lot !
    really amazing ,,,and helps a lot !
    this ph is wow !

  9. paopaorivera says:

    it’s only appropriate to say that this is the best and clearest explanation of lipids…….thank you sooooo much

  10. unserdaffon says:

    very well done. now my doctor don’t have to convince me. But I’m also interested in the side effects of the atorvastatins. Some say that it makes you forgetful (even stupid, with humor of course).

  11. cwhow2000 says:

    good.. very good, solve some of my confusions on the lipid metabolism all these while. Thanks man!

  12. litebug12345 says:

    I worry alot about the potential side effects of “big pharma” prescription drugs, I have always gravitated toward a natural alternative. For the longest time I had no idea that such an alternative even existed for cholesterol! I thought Rx was the only choice. Sterolyn is brilliant no side effects at all for me. I really appreciate this product.

  13. Saiyanmanz says:

    man this is a good video~~ so much beter than my stpd lipid lecturer that speaks in a mono-tone and cnt lecture for @#$%^ lol man I hate her~

  14. nithyasendhil1 says:

    excellent video.Thank you so much.Its very useful.

  15. What a nice lecture…I benefited from it the most and will use some of the slides in my lecture to teach my studens in Turkey.
    Thanks to the lecturer.

  16. excellent video.Thank you very much Dr T Fulton.

  17. SwannieUK says:

    Good lecture. Except the fact that there are no studies which clearly show LDL/HDL affects your rate of CVD. And plenty of studies which can show that diet, based on regional variation, does not affect your chances of CVD.

    Not surprising as this is from a Pharmacology lecturer who’s job is to get pharma industry people into academic programs…

  18. MrLeonturner says:

    !!! Absolutely the best Lipid lecture I have seen, I am a NP and have practiced in the medical field for approximately 24 years…Tracy…very excellent summary of complex and vital concepts !!!!

  19. very clear Dr. tracy. good job, also intresting