Hey guys and gals, my doctor wants me to go on a low cholesterol diet because my "LDL is a bit high". I would like to form my own opinion but can't understand the format it was given to me in. Maybe someone can help me out?

Cholesterol 5.7 mmol/L

LDL 3.5

Hdl. 1.8
Chol/hdl. 3.2

Trigs. 0.9

I am use to seeing numbers like "240" or "50" and stuff. I am assuming its a decimal point movement but not sure. Also, taking thoughts/suggestions.

25 year old healthy male. Have to get tested every 3 years for my job.