Olive oil is a 'safe oil' for high cholesterol diets if used in moderation.
Sensible eating is the best way to 'fight' high cholesterol. Diet sodas are OK but cost money and the reader sounded as if money could be a problem. Just 30 minutes of walking a day can help. If time is a problem, do it in 5 or 10 minute increments. Personal experiences and my readings to help me educate non-medical staff at a hospital.