The flexitarian diet is a mostly plant-based eating pattern that allows occasional consumption of meat and other animal products, with no strict rules about how little meat you have to eat or how often. The name combines “flexible” and “vegetarian,” and that flexibility is precisely the point: it offers a practical middle path between a fully plant-based diet and an omnivorous one that does not require giving anything up entirely.
A 2024 cross-sectional study published in BMC Nutrition compared long-term flexitarians consuming 50 grams or less of meat per day with vegans and omnivores consuming 170 grams or more, and found that flexitarians had significantly better cardiovascular biomarkers than omnivores across multiple measures, including lower LDL cholesterol, lower metabolic syndrome scores, and better arterial stiffness. The same researchers concluded that reducing meat and processed meat intake, as in flexitarianism, may contribute to cardiovascular risk factor advantages that bring outcomes closer to those of vegans than to omnivores. A Frontiers in Nutrition review of the evidence base found emerging benefits for the flexitarian diet in relation to weight loss, metabolic health, and diabetes prevention.
How the Flexitarian Diet Works
There is no single rigid definition. The BMC Nutrition study classified anyone eating 50 grams or less of meat per day as a flexitarian. Most everyday interpretations describe a diet where plants, legumes, whole grains, and dairy are the foundation, and meat appears a few times per week in smaller portions rather than as the centerpiece of every meal.
Plant protein is the primary protein source, not a supplement to animal protein. The shift that produces most of the flexitarian diet’s health benefits is building meals around lentils, beans, tofu, tempeh, and eggs rather than treating these as side dishes to a meat-based main.
Reducing red and processed meat specifically drives most of the measurable risk reduction. A Harvard School of Public Health analysis found that individuals who reduced their red meat intake and replaced it with healthier protein alternatives had lower risk of dying from cardiovascular disease and cancer, while substitution toward plant proteins was specifically associated with lower mortality risk.
The diet is more sustainable long term than stricter plant-based approaches for many people. Because nothing is permanently forbidden, social eating, travel, and occasional meals at restaurants do not require the same level of planning and refusal that veganism or strict vegetarianism do.
Flexitarian Diet Foods List: What to Buy
Plant Proteins (Most Important Category)
These form the foundation of most meals on a flexitarian diet, replacing meat rather than accompanying it.
Best sources:
- Lentils, brown and red
- Black beans, chickpeas, and kidney beans
- Edamame and soybeans
- Tofu, firm and silken
- Tempeh
- Peanuts and peanut butter
- Almonds, cashews, and walnuts
Eggs and Dairy
Best choices:
- Eggs
- Plain yogurt and Greek yogurt
- Cottage cheese
- Cheese in moderate amounts
- Milk or fortified plant milk
Whole Grains and Complex Carbohydrates
Best choices:
- Oats
- Brown rice and quinoa
- Whole wheat bread and pasta
- Barley and farro
- Sweet potatoes
A Wide Variety of Vegetables
Best choices:
- Leafy greens such as spinach, kale, and Swiss chard
- Broccoli, cauliflower, and Brussels sprouts
- Bell peppers and tomatoes
- Carrots, beets, and squash
- Mushrooms, which provide a meaty texture and umami depth in plant-based meals
Fruits
Best choices:
- Berries
- Citrus fruits
- Apples and pears
- Bananas
- Avocado
Healthy Fats
Best choices:
- Extra virgin olive oil as your primary cooking fat
- Avocado and avocado oil
- Nuts and seeds
Occasional Animal Protein
On a flexitarian diet, these appear a few times per week rather than daily, and are most often chosen for their nutrient density rather than bulk.
Best choices when you do eat animal protein:
- Salmon and fatty fish for omega-3s
- Chicken and turkey as leaner options
- Shellfish
- Small portions of beef or pork, preferably less processed and grass-fed or pasture-raised when possible
Foods to Limit on a Flexitarian Diet
Red Meat in Frequent, Large Portions
The cardiovascular risk reduction seen in flexitarians versus omnivores in the BMC Nutrition study was most strongly tied to lower total meat and processed meat intake, making red meat frequency and portion size the most meaningful lever to adjust.
To reduce rather than eliminate entirely:
- Daily large servings of beef, pork, and lamb
- Frequent red meat as the primary protein source at every meal
Processed Meat
To significantly limit:
- Bacon, sausage, and hot dogs
- Deli and lunch meats
- Salami and pepperoni
Ultra-Processed Foods
A flexitarian diet built primarily on plant-based convenience foods and processed meat replacements does not confer the same benefits as one built around whole foods, making the quality of your plant choices as important as the reduction in animal protein.
To limit:
- Heavily processed plant-based meat alternatives with long ingredient lists
- Packaged snack foods and sugary cereals
- Fast food, even when nominally vegetarian
Added Sugar and Refined Carbohydrates
To limit:
- Sugary drinks and desserts
- White bread and white pasta in large portions
- Pastries and packaged baked goods
Alcohol
To moderate:
- Alcohol of all kinds, consistent with standard dietary guidance
Flexitarian Diet Grocery List by Store Section
This list covers one week for one adult following a flexitarian pattern, with plant protein at the center and animal protein appearing two to three times across the week.
Produce
- Spinach and kale (1 bag and 1 bunch)
- Broccoli and cauliflower (1 head each)
- Bell peppers (3)
- Mushrooms, for texture and umami in plant-based meals (300g)
- Carrots and beets (500g combined)
- Sweet potatoes (3 medium)
- Avocados (3)
- Berries (1 to 2 punnets)
- Citrus fruits (4)
- Bananas (1 bunch)
- Tomatoes (4)
Meat and Seafood (Two to Three Servings This Week)
- Fresh salmon or mackerel (2 portions)
- Chicken breast or thigh (300g)
Eggs and Dairy
- Eggs (1 dozen)
- Plain Greek yogurt (1 tub)
- Cottage cheese (1 tub)
- Milk or fortified plant milk (1 carton)
Grains and Legumes
- Oats (1 container)
- Brown rice and quinoa (500g each)
- Whole wheat bread and pasta (1 loaf and 1 box)
- Lentils, brown and red (2 cans or 500g dried)
- Black beans and chickpeas (2 to 3 cans)
- Edamame (1 bag fresh or frozen)
- Tofu, firm (1 block)
- Tempeh (1 block)
Pantry
- Extra virgin olive oil (1 bottle)
- Almonds, walnuts, and cashews (150g each)
- Peanut butter (1 jar)
- Ground flaxseed and chia seeds (200g each)
Frozen
- Frozen edamame (1 bag)
- Frozen salmon fillets (1 bag)
- Frozen mixed berries (1 bag)
- Frozen leafy greens (1 bag)
Beverages
- Water, primary beverage
- Herbal tea
- Coffee and tea in moderate amounts
Practical Tips for the Flexitarian Diet
Start by making two or three meals per week plant-based rather than overhauling everything at once. The flexibility built into this diet is designed to make the transition gradual and sustainable rather than requiring willpower to stick with a strict protocol from day one.
Build meals around plant protein first, then decide if meat belongs. This single mental shift, asking what legume or grain forms the base of this meal rather than which meat goes in it, reorients your cooking toward the flexitarian pattern without requiring recipes or meal plans.
Choose quality over quantity when you do eat meat. A smaller serving of good fish or pasture-raised chicken twice a week fits the flexitarian pattern better than daily processed meat eaten in large portions.
Use mushrooms, lentils, and tempeh as meat stand-ins for texture. Portobello mushrooms, lentil bolognese, and tempeh stir-fry satisfy the same textural role in a meal that meat typically plays, making plant-based days feel just as satisfying.
Pay attention to iron and B12 as you reduce meat frequency. Plant-based iron is less bioavailable than heme iron, so pairing iron-rich legumes with vitamin C at the same meal maintains absorption, and a diet with only occasional animal protein is worth monitoring for B12 through either fortified foods or a supplement.
Do not replace meat with ultra-processed plant-based alternatives. The health benefits of the flexitarian diet come from eating more whole plant foods, not from substituting processed meat with processed plant meat.
The Bottom Line
The flexitarian diet offers one of the more evidence-supported entry points into plant-based eating, with measurable cardiovascular benefits that place long-term flexitarians meaningfully closer to vegans than to omnivores on key cardiovascular biomarkers, without requiring complete elimination of any food group. Build your grocery list primarily around legumes, whole grains, vegetables, eggs, and dairy, introduce salmon and fatty fish two to three times per week for omega-3s, and reduce red and processed meat to occasional rather than daily appearances. The practical flexibility this diet offers makes it more sustainable long-term than stricter plant-based approaches for most people, which matters more for health outcomes than any single week of food choices.
Disclaimer: Nutritional data referenced in this article is sourced from USDA FoodData Central. This article is for informational purposes only and does not constitute medical or dietary advice. If you are transitioning from a primarily meat-based diet, consider working with a registered dietitian to ensure adequate intake of iron, vitamin B12, calcium, and omega-3 fatty acids as you shift toward more plant-based eating.
