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Dr. Oz: Cancer scare, blood pressure diet and nut butter weight loss guide

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"The Little Couple" reality TV show has won praise for its heart-warming approach to overcoming challenges. Dr. Mehmet Oz invited the stars to talk about their cancer scare on his talk show Tuesday. Plus: Discover how your diet can reduce your blood pressure and get a guide to using nut butter for weight loss.

Jen Arnold revealed that she was diagnosed with cancer while adopting the couple's second child. Her husband Bill stayed behind while she coped with her treatment.

Because Jen is smaller, she chose to be treated at Texas Children’s Hospital so that her chemotherapy and other treatments could be customized for her needs. She now is cancer-free.

On the same episode, Dr. Oz talked about some ways to reduce your blood pressure without medication. The key: Increase your potassium intake with foods rather than supplements.

In addition to eating foods high in potassium, Dr. Oz previously has recommended the DASH (Dietary Approaches to Stop Hypertension) diet. It's been shown to reduce blood pressure by reducing sodium intake and increasing foods such as vegetables, dairy and protein.

Dr. Oz's expert Marla Heller authored "The Dash Diet Weight Loss Solution: 2 Weeks to Drop Pounds, Boost Metabolism, and Get Healthy." She emphasizes that by eating foods shown to reduce blood pressure as well as boost weight loss, you can make significant improvements in your blood pressure readings in just two weeks.

Studies also show that you can lower your blood pressure by performing handgrip exercises 10 minutes daily. Just squeeze a stress ball for a few minutes throughout the day.

Can nut butter really help you lose weight? Yes, says Dr. Oz.

For example, walnut butter cuts cravings while improving your cholesterol and heart health. Peanut butter boosts your energy and keeps your blood sugar stable. And macadamia nut butter improves your mood while keeping you full.

Don't want to use nut butter but like to nibble? Go for almonds, according to a recent study.

Researchers assigned 137 adults with high risks for diabetes to eat either 43 grams of almond daily or no almonds for four weeks. The almond eaters experienced a decrease in hunger and reductions in their postprandial blood glucose levels. They also did not gain weight.

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