Most folks pass gas 10-20 times a day with little noise and no smell (Whew!). But some can crank out around two liters of smelly, sulfur-containing compounds daily. No wonder when Buck and Arlene Weimer previewed their odor-suppressing underpants, Under-Ease, on "Shark Tank" (they didn't win), they generated a lot of buzz.

But no one mentioned what might be causing folks to want smell-stifling underwear. That's the problem we care about, and if it's your problem, we bet you care too.

One major cause of fumy gas is lactose intolerance. Between 30 million and 50 million adults in North America can't digest lactose, the sugar in cow's milk. That includes 90 percent of Asians, 75 percent of blacks, Native Americans and people of Mexican and Jewish descent and 50 percent of Mediterranean peoples. (Around 90 percent of those of Northern European descent can.)

If you're off dairy, you'll need alternate sources of calcium and vitamin D-3. For calcium, try dark leafy greens, sardines, salmon, beans and a 600 mg daily supplement. For D-3, it's salmon, canned albacore tuna and 1,000 IU of D-3 supplement daily. And you'll need something to pour on cereal!

Enter UNSWEETENED almond or walnut milk. One cup of packaged almond milk has healthy fats, 50 percent of RDA for vitamin E and B-12, 45 percent of calcium and 25 percent of vitamin D. And you can easily make nutrition-packed walnut milk: Soak 1 cup of walnuts overnight, drain, blend with 32 ounces of water, add a touch of salt and vanilla extract (make sure there's no sugar or corn syrup in it - just alcohol and vanilla). Then go nuts!