TODAY's Takeaway

TODAY's Takeaway: Man loses with McDonald's diet, Costas talks Lindsey Vonn

Jan. 6, 2014 at 4:24 PM ET

Today's Takeaway
Carey Mulligan discusses her new film, a teacher loses 37 pounds by eating McDonald's and Bob Costas talks about the Olympics.

1. With the Winter Olympics only 31 days away, Bob Costas told Matt that the public needs to lower their expectations for skier Lindsey Vonn, who has struggled with injuries since last season.

“You’re talking about someone who is arguably the greatest female ski racer of all time when you take into account world championships and everything,” he said. “But these Olympics, the expectations have to be lowered.”

Video: The veteran sportscaster and Winter Olympic anchor talks to Matt Lauer about skier Lindsey Vonn, the addition of slopestyle and safety in Sochi.

2. Peter Alexander gets a rare ride aboard Marine One, the president’s helicopter, and a insider's look at those who maintain it.

Video: NBC’s Peter Alexander talks to the men and women behind the dedicated maintenance and proficient use of the president’s helicopter, Marine One.

3. With over half of the country being threatened by a deep freeze, NBC News chief medical editor Dr. Nancy Snyderman offers some important tips for surviving the cold weather and avoiding serious health problems.

“If you don’t have to go out, don’t go out,” she said. 

Video: NBC News chief medical editor Dr. Nancy Snyderman provides some important tips to help you manage severely cold temperatures in your home, avoid hypothermia, and even keep your pets safe.

4. As part of TODAY’s ‘Shine a Light’ series, Matt and Savannah commit to bring a playground to a neighborhood in need this year. 

Video: TODAY’s anchors are devoting themselves to good causes in the year end, an initiative called “Shine a Light.” Matt Lauer and Savannah Guthrie will focus on playgrounds, working to help provide the security and location to inspire kids to exercise both their bodies and their imaginations.

5. Carey Mulligan stops by the studio to talk about her role in “Inside Llewyn Davis,” the new film by the Coen Brothers, and admits that she would rather do a nude scene than sing in a film. 

Video: The “Great Gatsby” actress talks about her role in “Inside LLewyn Davis,” the new film by the Coen Brothers, and explains why she would rather have had to do a nude scene in the film (which she didn’t) than sing in it (which she did).

6. Science teacher John Sizna followed a 2,000 calorie diet and ate only McDonald's. The result? He lost 37 pounds.

Video: John Cisna, a 54-year-old science teacher from Iowa, says he lost almost 40 pounds eating nothing but food from McDonald’s for 90 days. Cisna stops by TODAY to talk about his journey and explain why he decided to embark on the diet.