The Best Diets for Longevity: What to Eat for a Longer, Healthier Life
Updated: Aug 11
Authored by La Jolla Vitality Co.
What if one of the most important things you can do for longevity happens three times a day?
While no diet can guarantee a longer life, decades of nutrition research suggest that what we eat can substantially influence the risk of cardiovascular disease, diabetes, certain cancers, cognitive decline, and other chronic conditions that become more common with age.
The good news is that you don't need an exotic diet, expensive supplements, or a complicated meal plan.
The dietary patterns most consistently associated with healthy aging have something important in common: they emphasize whole and minimally processed foods, plenty of plants, healthy fats, adequate protein, and relatively little added sugar and highly processed food.
In fact, research published in 2025 following more than 100,000 adults for up to three decades found that people who more closely followed several healthy dietary patterns—including Mediterranean-style, DASH, MIND, and other plant-forward patterns—had better odds of healthy aging.
So which diets are best for longevity?
Here are some of the strongest contenders, and what they have in common.
1. The Mediterranean Diet
The Mediterranean diet is arguably the most famous longevity-oriented eating pattern.
Rather than being a rigid diet, it is a traditional way of eating associated with countries bordering the Mediterranean Sea.
What it includes:
Abundant vegetables
Fruits
Beans and lentils
Whole grains
Nuts and seeds
Extra-virgin olive oil
Fish and seafood
Moderate amounts of dairy
Eggs and poultry
Smaller amounts of red meat
Limited highly processed foods and added sugars
Extra-virgin olive oil is generally the primary added fat, replacing many sources of saturated fat.
The Mediterranean pattern is particularly appealing because it is not inherently restrictive. It emphasizes what to eat more of, rather than requiring you to eliminate entire food groups.
A Mediterranean-style dinner might include:
Grilled salmon, roasted vegetables, lentils, a whole grain such as farro, and a salad dressed with extra-virgin olive oil and lemon.
For vegetarians, fish and seafood can simply be replaced with additional beans, lentils, tofu, eggs, or other protein-rich plant foods.
2. The DASH Diet
DASH stands for Dietary Approaches to Stop Hypertension.
It was originally developed to help prevent and manage high blood pressure, but its emphasis on nutrient-dense foods makes it an excellent overall eating pattern.
DASH emphasizes:
Vegetables
Fruits
Whole grains
Beans and legumes
Nuts and seeds
Low-fat or fat-free dairy
Fish
Poultry
Other lean protein sources
It also emphasizes limiting excessive sodium, sweets, sugary beverages, and foods high in saturated fat.
One reason DASH is so appealing for longevity is that cardiovascular health is closely connected to healthy aging.
A DASH-style day might include:
Breakfast: Oatmeal with berries and walnuts
Lunch: Bean and vegetable bowl with brown rice
Snack: Plain Greek yogurt and fruit
Dinner: Grilled fish, roasted vegetables, and a baked sweet potato
3. The MIND Diet
The MIND diet combines elements of the Mediterranean and DASH diets, with a particular emphasis on foods associated with brain health.
MIND stands for Mediterranean-DASH Intervention for Neurodegenerative Delay.
It emphasizes:
Leafy green vegetables
Other vegetables
Berries
Beans
Nuts
Whole grains
Fish
Poultry
Olive oil
It also recommends limiting foods such as red meat, butter, cheese, pastries, sweets, fried foods, and fast food.
The MIND diet is especially interesting for healthy aging because it focuses on cognitive health in addition to cardiovascular and metabolic health.
Research has associated greater adherence to the MIND diet with lower dementia risk, although researchers caution that observational evidence does not prove that the diet itself prevents dementia.
More recent systematic reviews continue to find promising associations between MIND-style eating and cognitive health, while also emphasizing the need for additional research.
The easiest way to remember MIND:
Greens + berries + beans + nuts + whole grains + fish + olive oil.
That's a pretty good recipe for healthy eating in general.
4. The Traditional Okinawan Diet
Okinawa, Japan, has historically been known for a high proportion of centenarians and exceptional longevity.
The traditional Okinawan diet is quite different from many modern Western diets.
Historically, it emphasized:
Sweet potatoes
Other vegetables
Tofu and soy foods
Sea vegetables
Beans
Whole foods
Fruits
Small amounts of fish and other animal foods
The traditional pattern was relatively low in calories and saturated fat and rich in vegetables and plant compounds.
One important caveat: modern Okinawan eating patterns have changed substantially, so it is better to think of the traditional Okinawan dietary pattern rather than assuming that everything currently eaten in Okinawa represents the classic longevity diet.
The bigger lesson is valuable, however: diets centered on vegetables, legumes, minimally processed carbohydrates, and nutrient-dense foods can support healthy aging.
5. The Blue Zone-Style Diet
“Blue Zones” refers to several geographic areas that have been studied for unusually high longevity.
Although the specific diets vary, many traditional eating patterns in these regions share common characteristics.
They tend to emphasize:
Beans and legumes
Vegetables
Fruits
Whole grains
Nuts and seeds
Minimally processed foods
Animal foods are generally consumed in smaller quantities than in a typical Western diet.
One of the most important lessons is that longevity is probably not explained by diet alone.
Traditional Blue Zone lifestyles also tend to involve regular physical activity, strong social connections, and other lifestyle factors.
So don't assume that eating one particular bean or vegetable will recreate the longevity of a particular population.
The entire lifestyle matters.
6. A Whole-Food Plant-Forward Diet
You don't necessarily need to follow a named diet at all.
A whole-food, plant-forward diet may be one of the easiest ways to capture the beneficial characteristics shared by many longevity-oriented dietary patterns.
This doesn't necessarily mean becoming vegan.
It means making plants the foundation of your diet while choosing appropriate protein and healthy fats.
Build meals around:
Vegetables
Fruits
Beans
Lentils
Whole grains
Nuts
Seeds
Healthy plant oils
Then add:
Fish
Eggs
Yogurt
Poultry
Tofu
Tempeh
Other protein foods
according to your preferences and nutritional needs.
This approach can work for omnivores, vegetarians, and many people following predominantly plant-based diets.
7. The Portfolio Diet
The Portfolio Diet was designed primarily to help improve cholesterol levels through a combination of foods with cholesterol-lowering properties.
Its emphasis includes foods such as:
Nuts
Soy protein
Beans and lentils
Oats and other sources of soluble fiber
Plant sterols
Vegetables and fruits
The underlying principle is interesting for longevity: combine multiple small nutritional advantages rather than searching for one miracle food.
For example, instead of asking whether oatmeal alone can lower cholesterol, consider an overall pattern containing oats, beans, nuts, vegetables, fruits, and healthy fats.
What Do the Best Longevity Diets Have in Common?
This may be the most important part.
Although Mediterranean, DASH, MIND, Okinawan, plant-forward, and other healthy dietary patterns differ in some details, they overlap considerably.
They emphasize:
Vegetables
Especially leafy greens and a variety of colorful vegetables.
Fruit
Particularly berries and other whole fruits.
Legumes
Beans, lentils, chickpeas, and peas.
Whole grains
Oats, barley, brown rice, quinoa, farro, and other minimally processed grains.
Nuts and seeds
Walnuts, almonds, pistachios, chia, flax, pumpkin seeds, and others.
Healthy fats
Especially unsaturated fats from foods such as olive oil, nuts, seeds, and avocados.
Quality protein
Fish, legumes, soy foods, eggs, dairy, poultry, and other appropriate protein sources.
Fiber
From vegetables, fruits, legumes, whole grains, nuts, and seeds.
And they generally minimize:
Highly processed foods
Added sugars
Sugary beverages
Refined carbohydrates
Excess sodium
Excess saturated fat
Processed meats
Frequent fried foods
The current 2025–2030 Dietary Guidelines for Americans similarly emphasize whole, nutrient-dense foods—including vegetables, fruits, protein foods, dairy, healthy fats, and whole grains—while recommending that people reduce highly processed foods, added sugars, refined carbohydrates, excess sodium, and unhealthy fats.
The Longevity Plate
You don't have to follow a named diet to eat for longevity.
Try building most meals using this simple formula:
½ Plate: Vegetables and/or Fruit
Choose a variety of colors.
Examples:
Spinach
Broccoli
Tomatoes
Carrots
Peppers
Berries
Citrus
Apples
¼ Plate: Protein
Examples:
Beans
Lentils
Tofu
Tempeh
Fish
Eggs
Greek yogurt
Poultry
¼ Plate: Whole-Food Carbohydrates
Examples:
Oats
Quinoa
Brown rice
Barley
Farro
Sweet potatoes
Whole-grain bread
Add a Healthy Fat
Examples:
Extra-virgin olive oil
Avocado
Walnuts
Almonds
Chia seeds
Flaxseeds
This simple framework captures many of the nutritional principles shared by longevity-associated dietary patterns.
What About Meat?
You don't necessarily need to eliminate meat to eat for longevity.
However, many healthy dietary patterns emphasize plant foods and fish more heavily than red and processed meats.
If you eat meat, consider making it a smaller component of the overall diet rather than the centerpiece of every meal.
For example, instead of:
Steak + potatoes + small amount of vegetables
try:
Large serving of vegetables + beans or whole grains + smaller serving of meat.
Processed meats such as bacon, sausage, hot dogs, and deli meats are generally best consumed sparingly.
What About Dairy?
Dairy can absolutely fit into a longevity-oriented diet.
Depending on individual preferences and nutritional needs, options include:
Plain Greek yogurt
Kefir
Cottage cheese
Milk
Fortified dairy alternatives
Look for products that provide useful amounts of protein and calcium without excessive added sugar.
Plain yogurt topped with berries and nuts is a particularly simple longevity-friendly snack.
What About Carbohydrates?
Carbohydrates aren't inherently unhealthy.
The quality of the carbohydrate matters.
Choose carbohydrates such as:
Oats
Beans
Lentils
Fruit
Vegetables
Sweet potatoes
Quinoa
Barley
Brown rice
Whole-grain bread
more often than highly refined carbohydrates such as sugary cereals, pastries, candy, and heavily refined snack foods.
Whole-food carbohydrate sources can provide fiber, vitamins, minerals, and other beneficial compounds.
What About Fasting?
Intermittent fasting and time-restricted eating have received considerable attention for longevity.
Some research suggests that meal timing may affect metabolic health, but we don't yet have enough evidence to conclude that fasting is necessary for humans to live longer.
And fasting isn't appropriate for everyone.
Children, teenagers, pregnant or breastfeeding women, people with certain medical conditions, and people with a history of eating disorders should not adopt restrictive fasting practices without appropriate professional guidance.
You can eat a highly nutritious diet without fasting.
What About Alcohol?
Alcohol shouldn't be considered a longevity food.
Older studies sometimes suggested that moderate alcohol consumption could have health benefits, but more recent evidence has challenged the idea that people should drink alcohol for health.
If you don't drink, there is no reason to start for longevity.
And if you do drink, less is generally better from a health-risk perspective.
Don't Forget Protein as You Age
One aspect of longevity nutrition deserves special attention: maintaining muscle.
Muscle mass and strength are critical components of healthy aging.
As people get older, maintaining adequate protein intake becomes increasingly important, particularly when combined with resistance training.
Excellent choices include:
Beans
Lentils
Tofu
Tempeh
Greek yogurt
Eggs
Fish
Poultry
Nuts and seeds
Older adults should discuss their individual protein needs with a healthcare professional or registered dietitian when appropriate, particularly if they have kidney disease or other medical conditions that affect dietary protein requirements.
Fiber: One of the True Longevity Superstars
If there is one nutrient that deserves more attention, it's fiber.
Fiber supports digestive health and is associated with numerous aspects of metabolic and cardiovascular health.
The easiest way to increase fiber isn't necessarily to buy a supplement.
Instead, eat more:
Beans
Lentils
Vegetables
Fruits
Whole grains
Nuts
Seeds
Increase fiber gradually if your current intake is low and drink adequate fluids.
A Sample Longevity Menu
Here's what a simple day might look like.
Breakfast
Oatmeal topped with:
Blueberries
Walnuts
Ground flaxseed
Plain Greek yogurt
Lunch
Mediterranean-inspired grain bowl:
Quinoa
Chickpeas
Spinach
Tomatoes
Cucumber
Avocado
Extra-virgin olive oil
Lemon
Snack
Apple with almond butter.
Dinner
Baked salmon with:
Roasted broccoli
Lentils
Sweet potato
Mixed greens with olive oil
Dessert
Fresh berries with plain yogurt.
This menu isn't magic.
Its value comes from the overall pattern: plants, fiber, healthy fats, minimally processed carbohydrates, and quality protein.
The Best Longevity Diet Is the One You Can Sustain
Perhaps the most important principle is this:
Don't choose a diet simply because it has the best name. Choose an eating pattern you can enjoy and maintain for decades.
If you love Mediterranean food, follow a Mediterranean-style diet.
If you prefer a DASH approach, use DASH.
If you're vegetarian, build a plant-forward diet around legumes, whole grains, vegetables, fruits, nuts, seeds, eggs, dairy, tofu, and other appropriate protein sources.
If you don't want to follow any named diet, simply follow the common principles shared by the healthiest dietary patterns.
Longevity isn't about eating perfectly.
It's about making thousands of reasonably healthy choices over the course of your life.
The La Jolla Vitality Co. Longevity Grocery List
Keep these foods in your kitchen regularly:
Vegetables
Spinach
Kale
Broccoli
Brussels sprouts
Tomatoes
Carrots
Bell peppers
Sweet potatoes
Fruits
Blueberries
Strawberries
Apples
Oranges
Kiwi
Other seasonal fruit
Protein
Beans
Lentils
Chickpeas
Tofu
Tempeh
Eggs
Greek yogurt
Fish, if you eat seafood
Poultry, if desired
Whole Grains
Oats
Barley
Quinoa
Brown rice
Farro
Whole-grain bread
Healthy Fats
Extra-virgin olive oil
Walnuts
Almonds
Chia seeds
Flaxseeds
Avocados
The Bottom Line
There is no single magic longevity diet.
Instead, the healthiest dietary patterns, from Mediterranean and DASH to MIND and traditional plant-forward patterns, share a remarkably consistent foundation.
Eat more plants. Eat plenty of fiber. Choose healthy fats. Get adequate protein. Favor whole grains and minimally processed carbohydrates. Eat a variety of colorful fruits and vegetables. Include nutrient-dense foods regularly. And keep highly processed foods, added sugars, excess sodium, and processed meats to a minimum.
Research following more than 100,000 adults over decades found that several different healthy eating patterns were associated with better chances of healthy aging, reinforcing an important message: there is more than one way to eat for longevity.
The perfect diet doesn't exist.
The best longevity diet is one that is nutritious, enjoyable, sustainable, culturally appropriate, and realistic enough to follow for years—not weeks.
And perhaps most importantly, remember that food is only one piece of the longevity puzzle. Regular physical activity, strength training, sleep, stress management, social connection, preventive healthcare, and avoiding tobacco all contribute to healthy aging.
Eat well. Move often. Sleep well. Stay connected. And make healthy choices you can keep making for a lifetime.
This article is for educational purposes only and is not intended to provide individualized medical or nutritional advice. Dietary needs vary by age, health status, medications, pregnancy, activity level, and other individual factors. Consult a physician or registered dietitian for personalized guidance, particularly if you have a medical condition or specific nutritional needs.
Comments