Jillian Michaels, Birth Control Pills and Athleta - Week in Review - April 27 to May 3

Are you loading up on anti-nutrients? You might be slowing down your metabolism. Jillian Michaels has the fix in her new book: "Master Your Metabolism."

Liposuction's invasive, not to mention expensive. So what if you could have lipo in a bottle? It's not quite the same thing, but Kristen thinks it comes close. Want a smooth bottom this summer? Click on over!

Can forgiving old hurts really help you lose weight? Laura thinks so. Negative thoughts cause stress, which can lead to unhealthy habits. If you've been holding on to a grudge, Laura will show you how to let go and lose.

Here's a reason to drink up that green tea: It might stimulate the brown fat in your body. Unlike white fat, which is really just nasty stuff, brown fat is like a furnace that burns calories. So drink up!

Common diet advice holds that if you can't eat a whole food, choose a product with less than five ingredients. Not so, though, when it comes to potato chips and ice cream. Junk food is still junk food whether it's all natural or not.

Birth control pills might mess with your ability to get buff. Studies find the hormones might prevent building muscle mass in women, but don't skip that contraception just yet, especially if you're taking the Pill for good reason.

Start your spring workout wardrobe today by shopping at the Gap, the new owner of the fitness wear line Athleta. Might make a great Mother's Day present (hint, hint).

Free and convenient, office gyms are a great perk. But exercising with co-workers can feel a little weird at first. Fitz has tips for newcomers so they can take advantage of working out at work.

She's 23 years old and runs 17 miles a day so she can reach her goal of running all the way across the U.S. Meet Katie Visco, wondergirl.

Fifty years of research can't be wrong! The Mediterranean diet comes out on top -- again -- as a heart healthy diet. Not sure how to eat Mediterranean style? Read some of our other posts on the topic.