LDL cholesterol 3.6, is that normal?

LDL cholesterol of 3.6 mmol/L is not normal and is considered high.
LDL cholesterol less than 3.37 mmol (130 mg/dL) is the appropriate range; 3.37 ~ 4.12 mmo/L (130 ~ 159 mg/L) is borderline elevated; ≥ 4.14 mmol/L (160 mg/d) is elevated , so 3.6 mmol/L is borderline elevated, elevated blood lipids is a risk factor for diabetes mellitus and coronary heart disease, it is recommended to Active diet and exercise intervention.
People with elevated lipids need to eat a diet that is low in salt and fat, avoid animal offal, fried foods, etc., and increase exercise in moderation, such as jogging, hiking and other aerobic exercise.
Evaluation and treatment under the guidance of a physician is recommended.