Why do my feet go numb when I work out on the elliptical for 15 minutes. I'm usually going about 3mph. Should I be worried?

Metatarsal syndrome? Using elliptical machines forces the flexion/extension of the ankles many time during your exercise...I suspect you may have a problem with metatarsal syndrome (equivalent of wrist carpal tunnel). Since you did not say u have other problems/concern, i don't think this is serious. But i would check with your doc/podiatrist to have an evaluation to better diagnose your condition... Good luck.
More information. No way to answer without more information. If you're older, have cholesterol problems and bad circulation it's probably lack of blood supply. If you are younger and it's only part of your foot it's probably a lumbar disc issue. If you are otherwise young and healthy and pain free, don't worry. If you're old go get things checked.
No. Don't worry, but check it out with a doctor's help. You need to know if you have obvious nerve problems to your feet or blood sugar issues. You need to know if the circulation is good to your legs. Then you can honestly not worry, without hoping it is nothing you could easily correct and save yourself grief later on.

Related Questions

Why do my feet go numb when I work out on the elliptical for 15 minutes. I'm usually going about 3mph. Should I be worried?

See full answer. Diabetes can cause a peripheral neuropathy or numbness often this is associated with suboptimal dm control pernicious anemia can be associated with numbess. Alcohol as well as lead and heavy metals can rarely cause numbness. A herniated disc can cause numbness often associated with weakness and or muscle wasting you should se your doctor and have a physical done. Read more...
Nerve compression. The most common reason for numbness during activity is nerve compression. It could be as simple as tight or mismatched shoes (which just means you need to get better shoes), or it could be active swelling for medical reasons that cause nerve compression. It could also be tarsal tunnel, which would affect mostly the bottom of the foot. Read more...