Recent light-headed feeling from lack of nutrients?

PippiNe

Since I began dieting, I have had more frequent light-headed feelings (one evening I actually fainted upon standing up too quickly). Is this simply due to my calorie restriction, or could there be a nutrient that I'm not getting enough of? I am restricting my diet to 1200 calories/day. Some days I eat back a portion of the calories I burn when I exercise, others I don't. I usually go over the amount of protein and sugar recommended each day. I know I don't drink enough pure water, but I do get water in diet sodas in addition to a couple of glasses of plain water. I am in good health aside from being about 20 lbs too heavy for my height. Blood pressure was 106/64 at last check. Any ideas?

Phrick

I think the nutrient you're missing is probably FOOD. By not eating back your exercise calories, you're netting too few calories to adequately sustain your daily activities. Sure, you'll get by, except you'll have more frequent light-headed feelings and sometimes even faint upon standing up too quickly...

ncmedic201

Since I began dieting, I have had more frequent light-headed feelings (one evening I actually fainted upon standing up too quickly). Is this simply due to my calorie restriction, or could there be a nutrient that I'm not getting enough of? I am restricting my diet to 1200 calories/day. Some days I eat back a portion of the calories I burn when I exercise, others I don't. I usually go over the amount of protein and sugar recommended each day. I know I don't drink enough pure water, but I do get water in diet sodas in addition to a couple of glasses of plain water. I am in good health aside from being about 20 lbs too heavy for my height. Blood pressure was 106/64 at last check. Any ideas?

It could be your blood pressure. It's called orthostatic changes and if your BP drops when you stand up that will cause you to pass out. Orthostatic changes can occur with dehydration. Try adding more water to your daily routine and see if that helps.