The Food and Drug Administration is investigating products that claim they can protect people from sudden acute respiratory syndrome.

SEVERE ACUTE RESPIRATORY SYNDROME Overview FAQs Prevention Still Worried About Pandemic? All About SARS How SARS Works CDC Info. WHO Info.

ABC's "Good Morning America" on Thursday interviewed a person with a company that sells one such product -- the Mini Mate, a $250 air purifier that users wear around their necks. The company claims it may be able to keep the SARS virus from entering people's lungs.

But health officials say no product has been proven to prevent or treat SARS.

Hans Messersmith, director of disease surveillance for Indiana's health department, said people can protect themselves from SARS and any other infectious disease by doing "those things your mother taught you when you were a kid to keep clean."

"You want to cover your mouth when you cough. Wash your hands frequently, especially if you just coughed," Messersmith said.

Messersmith said hand-washing should be done with soap and warm water. Hands should be rubbed vigorously for 20 seconds, he said.

Doctor: 'Right' Carbs, Fats Will Help People Drop Pounds

People can lose pounds and lessen the cravings for sweets without feeling hungry, according to a Miami cardiologist who is touting what he calls the "South Beach Diet."

Dr. Arthur Agatston came up with the diet plan for his heart patients, most of whom are overweight.

The diet calls for consumption of the "right" carbohydrates, including sweet potatoes and brown rice. It also says dieters should eat oranges instead of orange juice.

Eating the "right" fats -- including also is important, Agatston said.

"Olive oil, canola oil, fish oil, (and) nuts. And these fat nuts not only don't cause heart attacks, they actually help prevent heart attacks and stroke, and may prevent other problems of the Western world like arthritis and depression," he said.

Agatston said the right carbs and fat are filling, and portion sizes will take care of themselves.

Topical Solution Treats Sun Spots

An FDA-approved treatment can improve the appearance of sun spots on people's skin.

The treatment, called Solage, is a topical solution. Users must avoid or limit sun exposure and use a sunscreen rated SPF 30 or higher.

Sun spots are flat, brown marks that can begin appearing on a person's skin between the ages of 40 and 60. The spots are a result of the sun's effect on the skin.