Dear Doctor วัลลภ พรเรืองวงศ์

I read that (LDL) cholesterol is "mostly produced" by our own body -- ie. 'not directly depending on what we consume' and that 'oil' is very much a prefered energy source for 'every' body -- this means with 'good exercises', oil is not as bad as 'sugar' as acause for obesity and diabetes,...

Can you please clarify these issues?