Yes, there are several things you can do to increase HDL and lower TG.
I've increased my HDL from 35 to 69. 1) adding "good" fats to your diet. Good fats are monosaturated and include olive oil, peanut oil, fish oil, walnut oil. Since you like oatmeal (as I do) try mixing 2 tablespoons of natural peanut butter (or almond butter) with your oatmeal. I do it and like it. Also, try to find an oily fish you like. My choice - canned herring (called "kippered snacks"

. If you don't find an oily fish you like try fish oil capsules. For info about fats and blood lipids see
http://www.hsph.harvard.edu/nutritionsource/fats.html
2. consider having one alcoholic drink daily (my choice - a Guinness for lunch) 3. aerobic exercise - aim for one hour daily (I do 8 miles daily) 4 - if these don't do the trick in a couple of months, then consider naispan - www. naispan.com - finally, are you fat around your waist? You may have metabolic syndrome - low HDL and high Trig are two signs of it.