Scientists Found the Nutrient That Stood Out for Aging Well — 12 Anti Aging Foods Rich in It

In the Blue Mountains, just west of Sydney in Australia, scientists followed more than sixteen hundred people. Everyone was about fifty or older, and the study ran for ten years. At the end, the team asked a simple question. Who was still aging well? By their measure, that meant no disability, no depression, no memory trouble, no breathing trouble, and no major disease. Only about one in six made it. And one nutrient stood out in what those people ate. It was fiber. The people who ate the most were about 80% more likely to be in that healthy group. Welcome to Garden of Longevity. And most of us fall short. Only about 1 in 20 Americans gets enough fiber. So today, you'll get 12 everyday foods that make it easy, counting down to the richest one of all. How sure is the science? Promising. Big studies keep finding this link, and trials show fiber helps with cholesterol and blood pressure Still, it's a link, not proof. Now, a goal to keep in mind. About 25 grams of fiber a day. For each food, you'll hear how much of that goal one serving covers. Let's get to the list. Number 12 is fresh figs. A ripe fig is soft and sweet, with a thin skin you can eat. Inside are hundreds of tiny seeds, and they give it that gentle crunch. A pair of fresh figs gives you about three grams of fiber. That's a little more than a tenth of your day from a small sweet snack. And it's fruit fiber, one of the two kinds that stood out in the Blue Mountains. Figs also have a very long story with people. In the Jordan Valley, scientists dug up figs stored in a village about 11,000 years old. They think fig trees may have been the first plant people ever farmed, even before grains. Fresh figs are at their best from late summer into fall. By November, they can be harder to find, so pick some up when you see them. Choose figs that feel soft and a little heavy, with no wet spots. They barely ripen after picking, so keep them in the fridge and eat them within a couple of days. In the kitchen, trim the stem and eat them whole, or cut them into quarters and scatter them over warm barley porridge. You'll hear more about barley a little later. So, fresh figs bring fruit fiber and a story as old as farming. Next is a crunchy snack that's a whole grain in disguise. Number 11 is popcorn, the plain kind, popped with hot air. Here's something many people don't know. Popcorn is a whole grain. Each kernel is a whole seed of corn, with its outer skin, the bran, still on. A big bowl of plain popcorn gives you almost 4 grams of fiber. That's about 3 cups, with very few calories. And it's grain fiber, the other kind that stood out in the study. People who ate little grain fiber, year after year, were about half as likely to age well. Why does it pop? Each kernel holds a tiny drop of water. Heat turns that water to steam, the pressure builds, and the kernel bursts inside out. The trouble starts with what goes on top. Movie theater popcorn comes soaked in oil and salt, and so do many microwave bags. So make your own! An air popper needs no oil at all. Or put a small handful of kernels in a large microwave-safe bowl and cover it with a plate. Microwave it until the pops slow down to a few seconds apart. Then, season it with a pinch of salt and some dried herbs. One caution, if you have dental work or tender teeth, go easy, the hulls can stick and unpopped kernels are hard. So, popcorn brings grain fiber in a light, crunchy bowl. Next is a fruit you should never peel. Number 10 is a pear, with the skin on. A medium pear gives you about 5.5 grams of fiber. That's more than a fifth of your day, from a single piece of fruit. That number is for a pear eaten with its skin, so don't peel it, just wash it well. Pears have a clever habit. They're picked hard, and they ripen on your counter, from the inside out. So don't wait for the whole pear to go soft. Press gently near the stem. When the neck gives a little, it's ready. Then move it to the fridge to slow it down. There are a few common kinds. Bartlett turns from green to yellow as it ripens, and it's very juicy. Bosc has brown, rough skin, and it holds its shape when you cook it. Anjou stays green, and it's sweet and mild. Fruit fiber again! The kind the Blue Mountains linked with aging well. In the kitchen, a pear is the easiest snack on this list. For something warm, halve a couple of Bosc pears and scoop out the core. Poach them gently in water with a splash of vanilla for about 15 minutes. Gentle, wet heat like this is one of the kindest ways to cook, and it makes a lovely dessert. So the pear brings fruit fiber, as long as you keep the skin. Next is a winter root that turns sweeter in the cold. Number nine is parsnips. A parsnip is a long, cream-colored root with a sweet, nutty taste. A cup of cooked parsnips gives you more than 5 grams of fiber. That's more than a fifth of your day. About the same as a pear. Parsnips are a true cold weather vegetable. Farmers often leave them in the ground until after the first frosts. The cold turns some of their starch into sugar, so they taste sweeter. Long before sugar was cheap in Europe, cooks used parsnips to sweeten cakes and jams. This is vegetable fiber. The study didn't single that kind out, but total fiber was its strongest link, and every gram counts toward it. At the store, pick small to medium parsnips that feel firm. With no soft spots, the big ones can have a woody core. Wrapped loosely in the fridge, they keep for a couple of weeks. In the kitchen, peel them thinly and cut them into coins. Simmer them for about 10 minutes until soft. Then mash them with a little of the cooking water and a pinch of nutmeg. Or drop chunks into a pot of soup. They melt in and make it naturally sweet. So, parsnips bring vegetable fiber with a sweet, wintry taste. Next is the grain that fed Roman gladiators. Number eight is barley. Roman gladiators had a nickname. They were called portadarii, which means barley eaters. A Roman writer named Pliny wrote that barley was a main part of their diet, and scientists have studied bones from a gladiator cemetery in what's now Turkey. The chemistry fit a diet built on grains and beans. A cup of cooked barley gives you about six grams of fiber. That's about a quarter of your day. And it's grain fiber, the kind the Blue Mountains study picked out. Barley is also one of the oldest grains people have farmed. It's chewy and nutty, and it makes soups thick and filling. You'll usually see pearled barley. Its tough outer hull and part of the bran are polished off, so it cooks in about half an hour. Hulled barley keeps more of the bran and more fiber, but it takes a good deal longer to cook. In the kitchen, cook it like pasta. Simmer it in plenty of water until it's tender, then drain it. Keep a container in the fridge for the week. Stir a scoop into soup or toss it with chopped vegetables. For breakfast, warm it with a little water and some chopped pear. One note, barley contains gluten, and so does our number five. If you have celiac disease, skip those two. So, barley brings grain fiber with a story 2000 years old. Next is an autumn fruit that's in season right now. Number seven is persimmon. It's a glossy orange fruit with a leafy green cap. And late fall is its season, so this is the perfect time to try one. A single persimmon gives you about 6 grams of fiber. That's a quarter of your day. The same as a cup of barley. There are two common kinds, and the difference really matters. Fuyu is squat and flat on the bottom. You can eat it while it's still firm, crisp and sweet, skin and all. Hachiya is longer, shaped like an acorn. It must be completely soft, almost like jelly, before you eat it. Bite into a firm hachia and your mouth will pucker for minutes. Natural plant compounds cause that, and they fade as the fruit ripens. Fruit fiber once more! The kind that stood out in the study. In the kitchen, slice a fuyu into wedges, the way you'd cut a melon. Let a hachia ripen on the counter until it feels like a water balloon. Then, cut off the top and eat it with a spoon, like pudding. So, persimmon brings fruit fiber, right in its season. And before the last six foods, let's look inside the study behind this list. The Blue Mountains are a ridge of forest and cliffs just west of Sydney. In the early 1990s, scientists from the University of Sydney began a study there. At first, it was about eyesight in older people. But the team kept following the same people for years, and they asked about much more. They asked about their health, their mood, their memory, and what they ate. So after 10 years, they could look back. Who stayed well? And what had they been eating? They tested sugar, starch, and how fast foods raise blood sugar. None of those made a clear difference. Fiber did. And fiber from grains and fruit stood out most. So what is fiber, exactly? It's the part of plant food your body can't fully break down. You find it in fruit, vegetables, grains, beans, peas, and seeds. Meat and dairy have none at all. Because your body breaks it down slowly, fiber keeps you full longer. And in trials, eating more fiber brought cholesterol, blood pressure, and weight down a little. The same team took a second look at people over 60. Some ate more than about 19 grams of fiber a day. When the team checked again, five years on, those people were doing better. They were about half as likely to lose their independence. That means needing help with everyday things like shopping, cooking, or handling money. And the pattern goes far beyond Australia. In 2019, the World Health Organization asked scientists to gather the research on fiber. They pulled together nearly 200 long studies and dozens of trials. The people who ate the most fiber had noticeably lower rates of death and heart disease. And the biggest benefits showed up at 25 grams a day and a little above. That's where our daily goal comes from. A much bigger study of American nurses found the same thing. Women who ate more fiber in midlife had better odds of aging in good health decades later. The idea itself goes back further. In the 1970s, an Irish surgeon named Denis Burkitt compared what he'd seen in Uganda with hospitals in the West. Some illnesses that were common in the West were rare in rural Africa, where people ate far more fiber. His little book, Don't Forget Fiber in Your Diet, became a bestseller around the world. The results on aging all come from studies that followed people for years. So it's a link, not proof. But it's a link that keeps showing up in place after place. Now for the last six foods. They're the richest in fiber of all. Number six is the artichoke. What we eat is actually a flower bud. Left on the plant, it would open into a big pur- A medium artichoke, cooked, gives you almost 7 grams of fiber. That's more than a quarter of your day from a single vegetable. A whole artichoke can look like hard work, but it's easy once you know how. Cut off the stem and the top inch of leaves. Steam it for about half an hour until a leaf near the middle pulls out easily. Then eat it leaf by leaf. Pull one off and scrape the soft base against your teeth. Near the center, you'll reach a fuzzy patch called the choke. Lift it out with a spoon, and underneath is the heart, the best part of all. For a shortcut, buy frozen artichoke hearts, or canned ones packed in water. Rinse the canned ones to wash off some salt. Stir them into soups, or warm them through a bowl of bulgur, our next food. Like parsnips, this is vegetable fiber, and it all goes into the total that mattered most. So the artichoke brings a lot of fiber from one flower bud. Next is a grain that's ready almost as fast as a kettle boils. Number five is bulgur. Bulgur is wheat that's been boiled, dried, and cracked into small pieces. It's been an everyday grain in Turkey and the Middle East for thousands of years. A cooked cupful of bulgur gives you about eight grams of fiber. That's about a third of your day. And because the bran stays on, it's a whole grain, the kind of fiber this study picked out. Since it's already been cooked once, Bulgur is one of the quickest whole grains you can make. For fine bulgur, pour boiling water over it, cover it, and let it sit for about 15 minutes. Coarse bulgur needs a short simmer in a pot instead. It's light and fluffy, with a mild nutty taste. In the kitchen, cook coarse bulgur in vegetable stock for a simple pilaf. Then stir in some chopped dill and artichoke hearts. Leftovers last several days in the fridge, and they're good cold too. And remember, bulgur is wheat, so it has gluten. So bulgur brings whole grain fiber in about 15 minutes. Next is a tiny seed that turns into a gel. Number four is chia seeds. Chia comes from a plant in the mint family from Mexico and Central America. The seeds are tiny, black, white, or gray, and they have almost no taste. A couple of tablespoons of chia carry about eight grams of fiber. That's a third of your day, as much as a whole cup of bulgur. Here's what makes chia different. In liquid, each seed wraps itself in a soft coat of gel. Stir some into water, wait 10 minutes, and the whole glass thickens. That gel brings one safety rule. Always let chia soak in liquid before you eat it. Don't swallow a spoonful of dry seeds and then drink water, because they can swell in your throat. The study didn't look at seeds on their own. But chia makes your daily total much easier to reach. In the kitchen, try a quick chia jam. Mash a very ripe chia persimmon or a soft pear in a bowl. Stir in a spoonful of chia and wait 20 minutes. It sets like jam, with no added sugar. Spread it on whole grain toast. Or, stir a spoonful into a bowl of soup, and it thickens as it sits. A sealed jar of chia keeps for months in the cupboard. So chia brings a lot of fiber in a small spoonful. Next, the list turns to beans and peas, the richest fiber foods there are. Number three is chickpeas, also called garbanzo beans. From here to number one, it's beans and peas. They're the richest everyday sources of fiber you can buy. And they count toward total fiber. The study's strongest single link. A cup full of cooked chickpeas brings about 12 grams of fiber. That's half your day, in a single serving. Chickpeas bring plant protein, too. That's handy, because many of us need a little more protein as the years go by. And this kind comes with fiber built in. People have grown chickpeas for thousands of years, from the Mediterranean to India. They're nutty, a little creamy, and they hold their shape well. Canned chickpeas are already cooked and ready to use. Rinse them in a strainer, which washes off a good part of the salt. If you cook dried ones, soak them overnight, then simmer them for about an hour and a half until tender. In the kitchen, stir a can into a pot of vegetable soup or stew, or mash them with a fork with a little oil, salt, and chopped dill for a sandwich spread. Toss a handful into a bowl of bulgur, and you have a filling lunch. So, chickpeas bring half a day's fiber plus protein. Next is the base of a thick, warming winter soup. Number two is split peas. These are dried green or yellow peas, peeled and split in half. And they have a big advantage over most beans. You don't need to soak them. A bowl of cooked split peas gives you about 16 grams of fiber. That's about two-thirds of your day. Pea soup has warmed families through the winter for centuries, across Northern Europe and beyond. It's cheap, it's filling, and it's even better on the second day. Here's a simple way to make it. Rinse a cup of dried split peas. Put them in a pot with about 4 cups of water and a bay leaf. Add a chopped parsnip from earlier in the list if you like. Simmer it for about 45 minutes, stirring now and then, until the peas fall apart. Then, blend half of it for a creamy soup with no cream at all. Split pea soup keeps for days in the fridge, and it freezes well. So, a single pot can feed you through a busy week. It thickens as it cools, so stir in a little water when you warm it up again. So, split peas bring two-thirds of a day's fiber in a warm bowl. And now, the richest fiber food of all twelve. Number one is navy beans. They're small, white, mild beans that turn soft and creamy when they cook. They got their name from the United States Navy, which served them to sailors in the 1800s. And here's the number. A cup of cooked navy beans gives you about 19 grams of fiber. That's three quarters of your day from a single cup. No other food on this list comes close. You may have eaten them without knowing it. Most canned baked beans are made from navy beans, but they come in a sweet sauce, so plain canned navy beans are the better buy. For people over 60, the Blue Mountains team found something worth remembering. Those who got past about that same amount each day kept their independence better. A cup of navy beans gets you there on its own. How do you cook them? Canned ones just need a rinse. For dried beans, soak them overnight in plenty of water. Drain them, cover them with fresh water, and simmer for about an hour until they're creamy inside. In the kitchen, navy beans are made for soup. Simmer them with chopped parsnips and a little dill. Then mash some of the beans against the side of the pot and the soup turns thick and velvety. Or warm them with a spoonful of mustard and a splash of water for a quick side dish. They also mash smoothly into a spread, just like the chickpeas. So, navy beans are number one. One cup brings three-quarters of a day's fiber, more than anything else on this list. You might be wondering about a few things, so let's clear them up. What about bread and breakfast cereal? In the Blue Mountains, fiber from bread and cereal had the strongest link of all. So if you eat them, choose well. Look for whole grain or whole wheat as the first word on the ingredient list. Then check the fiber line on the label. A good bread has a few grams in every slice. And for cereal, pick the one with the most fiber and the least sugar. Second, can I just take a fiber supplement? The big research reviews looked at five Fiber-rich foods. And they left supplement trials out. Foods also bring vitamins, minerals, and protein that a powder doesn't. So, start with your plate. And, if you take daily medicines, ask your pharmacist about timing when you add a lot more fiber. And third, will all this fiber upset my stomach? It can if you add it all at once, so go slowly. Add one new food every few days, and drink plenty of water with it. Start beans with a small portion, and rinse canned ones well. Most people find their body settles within a few weeks. So how do you reach the goal in a real day? Here's one way, with six foods from the list. For breakfast, warm barley with a chopped pear. For lunch, a bowl of navy bean soup with parsnips. In the afternoon, a big bowl of plain popcorn. And for dinner, a small helping of bulgur on the side. That adds up to about 30 grams of fiber, right around the goal, from ordinary food. You don't need all 12 every day. Keep the others for variety through the week, and let the seasons choose for you. Let's run through all 12 from the bottom up. 12 fresh figs 11 popcorn 10 pears with the skin on 9 parsnips 8 barley 7 persimmon 6 artichokes 5 bulgur 4. Chia seeds. 3. Chickpeas. 2. Split peas. 1. Navy beans. Every study from today is linked in the description, along with the full list. And tell me in the comments, how many grams of fiber do you think you eat on a normal day? Take a guess. If you know someone who'd enjoy this list, send it their way. And subscribe, because a fresh video comes out every single day. Until next time, take care of yourself from the inside out.