What natural foods are good to increase your hdl cholesterol level?

Fish: Fish especially cold water fish like salmon and tuna. Also regular exercise, not smoking, and controlling diabetes if you have it.

Vegetable fat: Oil, avocado and nuts are a good source of good fat.

Depends on why : Saturated fats will raise HDL cholesterol. Fish oils, to a smaller extent will also raise HDL cholesterol (when triglycerides are high, the reason may be that as tg's go down, HDL goes up). In addition, for those overweight and pre-diabetic or Insulin resistant a diet reduced in simple carbohydrates and refined sugars can improve the HDL level as tg's go down. Think heart healthy.