That blog article doesn't even list an author lol.
The AMA recommends one eat roughly 25 grams of fiber a day to keep cholesterol at a favorable level.
The bottom line is that per cup white rice has about one gram of fiber and brown rice has about three grams of fiber.
Based on you genetics and if you only eat white rice then consuming less fiber may lower you HDL.
Who the heck only eats meat and white rice while on cycle?
Every meal you eat should contain fruits/vegetables/legumes which will help give more favorable cholesterol levels.