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What is A person on fat free carbohydrate rich diet continues to grow obese. Which of the following lipoproteins is likely to be elevated in his blood? and explain in detail?
As VLDL is the main transporter of endogenous triglycerides; all the conditions causing increased endogenous triglyceride synthesis will also increase VLDL secretion. And these are:-

Well fed state (not starved).
High level of circulating free fatty acids.
Carbohydrate rich diet (especially sucrose and fructose)
Present of high level of insulin and low level of glycogen.
Ethanol (alcohol) ingestion.

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