• Business Insider has spoken to many centenarians about their tips for living to 100.
• Many believe that eating well has helped them to live longer.
• Their tips include eating whole foods and having the occasional treat.

Living to 100 is relatively rare: only 0.03% of the US population are centenarians, according to an analysis by Pew Research Center.

But Pew predicts that the number of centenarians in the US will quadruple by 2054, as life expectancy increases. Genes, environmental factors, and luck play big roles in how long someone might live, but lifestyle choices matter, too.

Here's how eight centenarians who have spoken to Business Insider eat, which may have contributed to their health and longevity.

Eat fresh, whole foods

Many of the centenarians BI has reported on eat lots of fresh, whole foods — and not much meat.

102-year-old Deborah Szekely has been a pescatarian all her life, and grows a lot of her own vegetables on the ranch in Baja California, Mexico, where she still works.

Pearl Taylor, also 102, based in Dayton, Ohio, said she eats a mostly vegetarian diet, and meat on occasion. She also swears by her homemade green juice, which contains aloe root, celery, parsley, ginger, and water sweetened with Splenda.

Meanwhile, Lousie Jean Signore, the second oldest person in New York at 112 years old, follows the Mediterranean diet, which is high in whole foods such as fruit, vegetables, beans, and olive oil.

Signore eats salad, fruit, and vegetables every night, and adds tomato sauce, garlic, or olive oil to all her main meals, as BI previously reported.

The Mediterranean diet is widely considered to be the healthiest way to eat, and research has linked it to improved heart health, weight loss, and preventing cognitive decline.

Cook at home

Taylor prepares all of her meals and hasn't eaten a pre-packaged meal in "years," she said.

This is common among centenarians, many of whom grew up before fast food and microwaveable meals became widely available.

For example, 101-year-old William, from Toronto, cooks all his meals, featuring lots of sardines, which he thinks are his longevity secret.

Jack Van Nordheim, 101, known as Uncle Jack on social media, never developed a taste for fast food, instead preferring simple homemade meals such as boiled chicken.

Eating more home cooking can mean people eat fewer ultra-processed foods, which have been linked to major health problems, including depression, type 2 diabetes, and cardiovascular disease.

A 2017 study published in the International Journal of Behavioral Nutrition and Physical Activity found that participants who cooked at home five times a week were more likely to follow healthy ways of eating such as the Mediterranean diet; eat more fruit and vegetables; and be a healthy weight.

Eat moderately…

Many Japanese centenarians follow the principle of "hara hachi bu," which means they eat until they are 80% full, Yumi Yamamoto, who works for LongeviQuest, an organization that verifies the ages of supercentenarians, told BI.

Yamamoto's great-grandma, Shigeyo Nakachi, was the second-oldest living person in Japan when she died in 2021. Yamamoto said that Nakachi never ate to excess and wouldn't finish a whole chocolate bar in one sitting.

Similarly, the mantra of Ireland's oldest man, 108-year-old Martin McEvilly, who cycled regularly until he was 99, is "everything in moderation."

For McEvilly, this means only drinking alcohol on Sunday evenings, when he enjoys three pints of Guinness.

… but treat yourself

Although Japanese supercentenarians tend to eat in moderation, Yamamoto said they still treat themselves.

Kane Tanaka, the second oldest person in recorded history, who lived to 119, enjoyed a bottle of Coca-Cola every day, she said.

Likewise, Szekely enjoys the occasional serving of coffee ice cream, and Uncle Jack attributes his longevity to eating dark chocolate and honey daily.

Experts agree that incorporating treats into your diet can make healthy eating more sustainable. Dietitian Nicole Ludlam-Raine promotes the 80/20 diet, where you eat healthily 80% of the time and allow yourself to eat what you like the other 20%.

• Looking after our musculoskeletal health can help us stay strong and active as we age.
• Dr. Vonda Wright is an orthopedic surgeon specializing in healthy aging.
• She lifts heavy weights and does a weekly jumping practice to age well.

A muscle and bone doctor who specializes in healthy aging shared her weekly workout routine, which helps her maintains strength and mobility as she ages.

Dr. Vonda Wright, 57, is a Florida-based, double-board-certified orthopedic surgeon, who helps elite athletes, including Olympians and World Rugby Sevens players, optimize their performance.

In our 30s and 40s, we naturally start to lose muscle mass, which is crucial for continuing to do everyday movements, such as standing up from a chair. The process picks up between the ages of 65 and 80.

It's important to stay active to prevent our bones and muscles from weakening, and those who lead a sedentary life with eventually lose strength and balance and start to topple over or shuffle when they walk, Wright told Business Insider.

Around 12% of US adults older than 50 have osteoporosis, and 43% have low bone mass, a precursor to osteoporosis, according to the National Center for Health Statistics. But exercising greatly decreases the risk, Wright said

"Musculoskeletal aging and healthy aging is a lifelong pursuit," she said. "Just show up every day for yourself."

The "critical decade" for people to start developing habits that will allow them to live healthy, active lives into old age is between the ages of 35 and 45, said Wright, the author of "Fitness After 40,"

"70 to 80% of how we age is due to the lifestyle choices," Wright said.

With that in mind, she exercises five to six days a week, including cardio and strength training.

Powerlifting

Wright recommends that everyone learns to lift weights to build and maintain muscle mass.

She is a fan of powerlifting, which consists of deadlifts, bench presses, and squats. She does four sets of four reps of each and ensures she challenges herself with heavy weights.

"I can do four with good form. I'm exhausted. I may be able to do five, but I cannot do six. If I can do that, it's too light, and I need to go up," she said.

Alongside these, she does some accessory lifts, which are targeted at individual or smaller muscle groups, typically focusing on her biceps, triceps, lats, and deltoids. She does four sets of eight reps.

Running with the 80/20 rule

When it comes to aerobic exercise, Wright follows the 80/20 rule, meaning she does low-intensity training, also known as zone 2 training, 80% of the time and high-intensity training the remaining 20%.

Research suggests this approach builds endurance and improves cardiovascular health.

"For everyone, the very beginner runner to the most elite athlete, longer runs where you're maintaining a low heart rate are really beneficial for building aerobic endurance," Dr. Morgan Busko, a sports medicine physician at NewYork-Presbyterian/Columbia University Irving Medical Center, previously told BI. "By running slower for longer periods, you're setting yourself up to be able to run faster."

Wright typically runs on a treadmill for 45 minutes at about 60% of her maximum heart rate, and twice a week, she ends with some speed training. She sprints as fast as she can for 30 seconds four times.

"When you sprint like that and you really push yourself, no matter what age you are, you kind of feel like a badass," she said.

Jumping practice

To maintain bone density, everyone needs a jumping practice, Wright said, particularly if you sit at a desk all day. This can be jumping off a box, jumping rope, or even running up the stairs hard, she said.

She does box jumps between lifts twice a week and gets up from her desk and jumps up and down 20 times during the day. "My patients are used to seeing me jump around," she said.

In a 2009 study published in the journal Sports Health: A Multidisciplinary Approach, Wright and her colleagues measured the bone density of 560 senior athletes with an average age of 65.9. They found that those who did high-impact sports, such as volleyball, basketball, and running, had the highest bone density.

When a person has low bone density their risk of breaks and fractures, as well as osteoporosis, increases.

• D'yan Forest is a working comedian at 90, doing gigs in two languages.
• She shared some of her tips for staying fit and funny into her 90s.
• These include having a positive outlook and spending time with younger friends.

It's never too late for a career change — even if you're almost 70.

After a 40-year-long career as a cabaret singer, D'yan Forest, who lives in New York City, became a comedian in 2001. Now 90, she holds the Guinness World Record for Oldest Female Comedian and still performs solo shows in English and French.

"I never thought I'd be a comedian at 90," she told Business Insider. "I make fun of myself and older ladies, and I sing parodies. I'm a little risqué, and the people love it because they can't believe that an older woman still has verve and fun and can say such risqué things."

Forest shared her longevity secrets for maintaining that verve into her 90s.

Keep your mind active

"Being funny keeps my mind working. I change my material every six months, so I'm always learning new things as the culture changes in France or America. What is amazing is that I'm getting better and better every time I perform," she said.

Doing comedy has also helped her look at life with a "fun slant," she said. "It's a mental outlook that keeps me going.

This chimes with what experts have previously told BI: Heidi Tissenbaum, a cancer biology professor who researches healthy lifespans, said that keeping the mind busy is one of the basics of longevity. The authors of a 2023 study on common traits of healthy centenarians recommended staying intellectually active and focusing on the good in life.

Exercise

Forest goes swimming every other day and plays golf three times a week.

"I go out for long weekends, and boy, after the third day, I'm exhausted," she said. "But that keeps me physically active. Not many women my age can walk the golf course like that."

A 2019 study by researchers at the National Cancer Institute found that adults who exercised consistently into later life had up to a 36% lower risk of dying from any cause over the 20-year follow-up period. The study also found that even starting to exercise in later life is beneficial for longevity.

Eat fresh whole foods

"I just eat pure food, raw vegetables and fruits. I don't like it when food is all artificial. My mother always said during the war, "Eat the fresh fish. Eat the fresh fruit." She wouldn't even cook 'em, just ate them," Forest said.

A 2023 study published in the journal Nutrients on 2,454 participants from China found that eating more fruit and vegetables lowered the risks of cognitive impairment in older age. A 2020 study published in the American Journal of Clinical Nutrition found that US women over 60 who ate more fruit and vegetables were less likely to experience fatigue, poor strength, and illnesses.

Have (lots of) younger friends

Forest goes out for dinner with a different friend every day of the week.

Having a strong community is important for longevity. It may be more important than a healthy diet and regular exercise, said Professor Rose Anne Kenny, chair of medical gerontology at Trinity College Dublin.

"The problem is, when you're 90, that a lot of your friends and family die," Forest said. "And that's why the comedy is good because through that I've met a lot of younger friends who have the same interests that I do."

She's not alone — 102-year-old Janet Gibbs also credits her longevity to having younger friends as well.

• Herlda Senhouse, formerly the second oldest person in the US, died this week at the age of 113.
• She thought lifestyle factors could have contributed to her longevity as well as her genes.
• They included not having kids, eating healthily, and being part of a community.

Herlda Senhouse, born in 1911, appreciated three things about 2024: electric light, indoor plumbing, and having a Black female vice president.

Senhouse, who died at age 113 on Saturday, lived in Wellesley, Massachusetts. She worked as a housekeeper and nanny for white families, and faced racism including being denied the opportunity to study nursing, she told The Telegraph in 2021. Senhouse founded the Boston Clique Club, a group of dancers and musicians who raised money to help educate Black students in Boston.

"I never thought I'd see a Black woman vice president, which is amazing, and I'm so happy," she said.

Senhouse wanted to keep helping others even after she died: she donated her brain to researchers at Boston University, who are studying whether genes help some people live past 100 for the New England Centenarian Study.

As well as her genes, Senhouse attributed her longevity to a few lifestyle factors.

Don't have children to avoid stress

Senhouse often said that the secret to her longevity was not having children, Stephanie Hawkinson, a public information officer for the town of Wellesley told US News and World Report on Monday.

One 2017 study published in the Journal of Epidemiology and Community Health found that people without children didn't live as long as parents, possibly because of the support they received. But Senhouse thought that not having children helped her avoid stress, which research suggests can accelerate aging.

Eat healthily and don't smoke

"I don't smoke or drink. And I don't drink those fizzy waters… no soda. I seldom eat fast food," Senhouse told WBZ News in 2022.

People who followed healthy eating guidelines, including consuming lots of whole grains, fruits, vegetables, nuts, and legumes, had a lower risk of dying from cardiovascular disease, cancer, and respiratory disease in a 2023 study. The research involved 119,000 female nurses and male health professionals and was published in the journal JAMA Internal Medicine. These people were also less likely to smoke and more likely to exercise.

Be part of a community

Hawkinson said that Senhouse had a big community of friends, family, and fellow church members.

She also spent lots of time with her best friend, Margaret Robinson, whom she met over 60 years ago. They called each other every day and got their hair and nails done together every two weeks, WBZ News reported.

Researchers carrying out the Harvard Study of Adult Development have found that healthy relationships can lower the risk of dying at any age and help to reduce pain in older age, BI's Hilary Brueck previously reported.

Know when to let go

Do your best to fix issues in your life, but if you can't, let it go, Senhouse told The Telegraph.

Perseverance and focusing on the good things in life are common traits among centenarians, Business Insider previously reported. And longevity researchers who have spoken to over 1,000 centenarians told BI that many centenarians try not to stress about things out of their control.