The cleanest eaters in the United States live in Florida, a new map revealed.

Researchers scoured the nation to discover that 75 percent of residents in Naples, Florida, were the most healthy in the country.

The study, conducted by the Gallup-Sharecare Well-Being Index, concluded that people who claimed to eat clean often had lower levels of stress than those who didn't.

The city tucked away in the southwest corner of the state, has been ranked the happiest community in America for two years in a row.

Researchers scoured the nation to discover that 75 percent of residents in Naples, Florida, were the most healthy in the country. Lubbock, Texas, was the least healthy at 53.8 percent

Ranking as the least healthy place in the country is Lubbock, Texas, where a little more than half of poll participants admitted to being healthy for a full day.

Naples has a median age of 64 and Lubbock, home to Texas Tech University, has a median age of 29.

California had 10 areas that scored in the top 25 for communities that admitted they had eaten healthy for the entire day beforehand.

At the bottom of the list were Ohio, Texas, Oklahoma, Kansas and Louisiana; each had three communities in the bottom 25, according to the poll.

Overall, healthy eating in the nation is at its lowest level, with 63.2 percent of adults reporting eating healthy. This is a major drop from a high of 67.7 percent in 2010.

Although the study looked at adults, children across America are also failing to eat healthy as the journal Pediatrics reported 90 percent of children were eating french fries for their sole source of vegetables.

Many studies have found that eating healthy is often more accessible to those with a higher income.

The median income of residents of Naples was $85,984, opposed to Lubbock where the median annual income was $45,551.

HEALTHIEST CITIES 1. Naples, Florida 2. Barnstable Town, Massachusetts 3. Santa Cruz-Watsonville, California 4. Salinas, California 5. McAllen-Edinburg-Mission, Texas 6. Santa Rosa, California 7. Hilton Head Island-Bluffton-Beaufort, South Carolina 8. San Luis Obispo-Paso Robles, California 9. Lake Havasu City-Kingman, Arizona 10. El Paso, Texas Advertisement

LEAST HEALTHY CITIES 1. Lubbock, Texas 2. Memphis, Tennessee 3. Cincinnati, Ohio 4. Hickory-Lenoir-Morganton, North Carolina 5. Clarksville, Tennessee 6. Lexington-Fayette, Kentucky 7. Wichita, Kansas 8. Topeka, Kansas 9. Little Rock-Conway, Arkansas 10. Tulsa, Oklahoma Advertisement

The poll also showed that those who reported eating clean were happier and less stressed compared to those who did not eat as well. Their blood pressure and cholesterol levels were also lower.

A top tip shared by the Royal Voluntary Service suggested that for elderly people, eating healthy would lead to being happier.

Studies back this up, as almost two thirds of older people claim they are 'happier than they have ever been' when following such tips, a poll suggested.

Some 63 percent of people over the age of 70 feel more content than at any other point in their lives, according to the Royal Voluntary Service.