Many people ask me, “How is it possible to quantify fat metabolism by measuring exhaled breath? Are there fat molecules in your breath?” Well, fat metabolism can be quantified by measuring a chemical in your breath and that chemical isn’t fat.

When fat is metabolized, some of the fat is converted into ketone bodies. Ketone bodies are defined by …

If you’re telling yourself that eating those orange and green-topped mini candy pumpkins counts as “eating your vegetables,” and noshing on warm apple cider doughnuts means you’re taking advantage of seasonal fruit, you may be kidding yourself, but chances are, you’re not laughing at the joke when you step on the scale.

With so many pumpkin-flavored goodies on supermarket shelves, Halloween candy everywhere you …