My weight has dropped from about 240 a year ago to 190 now. Any ideas?

Would be helpful to know what things you have been tested for specifically. Unusual wt loss is unfortunately a hidden cancer until proven otherwise (have you had a PET scan or a CT scan?); but chronic illness such as TB can cause the symptoms you describe. Also in the differential: autoimmune diseases, malabsorption of nutrients (like sprue), maybe sarcoid. There are a number of very unusual illnesses (called "zebras") that could be the cause. Best for these is to go to an university medical center, if you haven't already. Very best wishes!

If disease or sickness is ruled out, I'd suggest getting tested for worms. A worm can SERIOUSLY deprive your body of the nutrients it gets from food. Kind of nasty but there could a big ole worm just chillin in your intestines eating all your food. Hope you find out whats going on because I'd like to suddenly drop 50 pounds..

We need more details, please. We can't answer your question properly if you don't provide us with symptoms, what you've been doing, etc.

For example, have you been consuming a lot of sugar? Do you sometimes feel weak or unnaturally thirsty? Have you experienced wounds that DON'T heal? Then you might be diabetic; dramatic weight loss is a sign of diabetes. I hope for your sake that's not the case, though. :(

Try to know the calorie counts before ordering dishes on restaurant

spend 10 minutes a day walking up and down stairs

if you re having trouble getting started make a small move such as starting an eating log or buying walking shoes you re three times more likely to follow through if you start with small gestures such as these

Keep a food journal and weight yourself regularly to track your progress

Try a cardio routine that engages multiple muscles simultaneously

2 hour walk at a moderate pace

Use 3 bite rule have three small bites and put fork down each time