Nine months ago I got a phone call from our doctor. He told me that my husband's triglycerides (and everything else) was really bad. He said he was giving us 6 months to get things under control, and if things hadn't improved at the end of 6 months then we were going to discuss blood pressure medication.
My husband was a bit peeved that our doctor gave the test results to me, instead of to him, but I was glad because it meant I could be part of finding a solution.
My husband weighed about 265 lbs. I put him on the South Beach diet, and started packing lunches for him to take to work.
Meanwhile my husband started walking home from work. First he'd just get off the bus early and then walk the rest of the way. Then he'd get off a little earlier. Then he'd walk all the way home from work - a little over 5 k at a brisk pace. And eventually he started taking the long way home - 7 or even 8 k.
At one point he plateaued and had a bit of a tantrum of the "why even try!?" variety. So I suggested adding evening walks, together. Our dog loved it, and before long he was losing weight again.
Today my husband weighs 175 lbs. His stats are all back in the normal range, except for cholesterol, which is only wee bit high and our doctor thinks will eventually come down if we keep up the good work. I've learned to cook some tasty meals that are good for us. We've discovered that walking is a really nice way to spend time together, just the two of us, and we're now planning some serious week or two week hikes along old Pioneer routes, and someday maybe even in Europe. My husband has started sailing once a week with his brother. And... if I can just say, he's looking mighty sexy.
So, it CAN be done. Don't despair!