my good cholesterol is too low at .7 it needs too be around 2.5 i have been eating avocados as they are supposed to help.
I am not at all sure you have your figures correct. Assuming that the numbers you quote are in mmol/l. then normal HDL is above about 0.95 mmol/l. The range is average is about 1.3 mmol/l.
0.7 mmol/l. is low, but you are not going to get to 2.5 mmol/l. Vigorous exercise increases HDL, running 10 miles a week increases it by 25%. 2 units of alcohol a day (but no more!) increases it by 15%, this is why statistically MODERATE drinkers live longer that teetotallers. Weight loss, down to your ideal weight increases HDL levels as does stopping smoking. Cutting out the trans fatty acids, ( partially hydrogenated vegetable oils) helps, as does increasing the monounsaturated fats in your diet (such as canola oil, avocado oil, or olive oil and the fats found in peanut butter).