The World's Vegetables Are Becoming Less Diverse: What It Means for Your Nutrition

Most people already eat too few vegetables, and a new global report highlights that vegetable biodiversity is also shrinking, which narrows the range of nutrients and plant compounds in our diets. Eating a wider variety of vegetables, including seasonal and less familiar ones, is a practical response. This article explains why variety matters and how to add more of it to your routine.

But there is a growing problem that goes far beyond whether we remembered to put broccoli on the dinner plate.

The vegetables available to us are becoming less diverse—and most people already aren’t eating enough of them.

A new report highlighted by ScienceAlert warns that the world is not simply facing a vegetable consumption problem. We are also facing a vegetable diversity problem.

Researchers studying global vegetable biodiversity found that modern food systems increasingly depend on a relatively narrow selection of crops, while hundreds of traditional and regional varieties remain overlooked, underutilized, or threatened. The researchers argue that improving nutrition will require more than simply producing greater quantities of vegetables—we need greater diversity as well.

And that matters for human nutrition.

We’re Already Eating Too Few Vegetables

According to the research discussed by ScienceAlert, people worldwide consume approximately 40% fewer vegetables than recommended for a healthy diet.

The World Health Organization recommends that people over age 10 consume at least 400 grams of fruits and vegetables per day, while emphasizing variety as one of the core principles of a healthy diet.

Yet quantity is only part of the equation.

Different plants contain different combinations of vitamins, minerals, fiber and naturally occurring plant compounds. When the variety of plants in our food system decreases, the nutritional diversity available on our plates can narrow as well.

The new research highlights an extraordinary contrast: while thousands of vegetable species and varieties exist around the world, modern agriculture and global supply chains concentrate heavily on a comparatively small number.

ScienceAlert points to potatoes as one striking example. More than 4,000 varieties of potatoes exist, yet only around five to eight varieties are widely used in the United States.

Meanwhile, lesser-known vegetables—including traditional dark leafy greens and climate-resilient varieties—can be particularly rich in micronutrients but remain largely absent from mainstream food systems.

Why Vegetable Diversity Matters

Plants aren't nutritionally identical.

Kale isn't broccoli. Broccoli isn't spinach. Spinach isn't cabbage.

Each contributes a different nutritional profile.

That is one reason dietary diversity matters: eating a broader range of plant foods increases exposure to a broader range of nutrients and plant compounds.

And decades of nutritional research have consistently associated greater fruit and vegetable consumption with better health outcomes.

A systematic review and dose-response meta-analysis involving 95 prospective studies found that higher fruit and vegetable intake was associated with lower risks of cardiovascular disease and all-cause mortality. The researchers observed benefits across multiple categories of produce, including green leafy vegetables and cruciferous vegetables.

An earlier meta-analysis involving more than 833,000 participants similarly found that higher fruit and vegetable consumption was associated with a lower risk of all-cause mortality, particularly cardiovascular mortality.

The message is remarkably consistent:

Plants matter—and variety matters.

But Modern Life Makes Variety Difficult

Knowing what we should eat and actually eating it every day are two very different things.

Fresh vegetables are perishable.

They require shopping, refrigeration, preparation and regular replenishment. Cost and availability can also determine what reaches our plates.

As the ScienceAlert report notes, vegetables can be among the first foods removed from grocery lists when household budgets tighten. Farmers face challenges too because vegetables can be more economically risky than many other crops due to their short shelf life and perishability.

Then add the realities of modern life:

Busy schedules.

Travel.

Convenience foods.

Limited access to diverse produce.

Seasonality.

Food waste.

And suddenly maintaining a truly diverse plant-based diet every single day becomes considerably harder.

That's where nutritional supplementation can play a practical supporting role.

ReLive Greens: A Convenient Way to Add Plant Diversity to Your Routine

Whole vegetables should remain an important part of a healthy diet. No powder should be presented as a reason to stop eating salads, broccoli, spinach, berries or the other whole plant foods you enjoy.

But when your diet isn't as diverse or consistent as you'd like it to be, ReLive Greens from The ROOT Brands offers a convenient way to complement your daily nutrition with a broad range of plant-based ingredients.

ReLive Greens combines green superfoods, dark leafy greens, fruits, fiber and other plant-derived ingredients in one daily formula. ROOT's published ingredient information includes:

Broccoli • Kale • Spinach • Green Cabbage • Parsley • Wheat Grass • Barley Grass • Alfalfa Leaf • Spirulina • Chlorella • Blueberry • Pomegranate • Aloe Vera • Green Banana Flour • Apple Fiber • Flax Seed • Psyllium Husk • Inulin

The formula also contains Bacillus coagulans and MCT coconut oil.

Look at that list again.

Broccoli, kale, spinach and cabbage alone represent several different plant foods—including both leafy greens and cruciferous vegetables—alongside grasses, algae, fruits and fiber sources.

That makes ReLive Greens especially relevant to the conversation happening around vegetable diversity.

It isn't about replacing food.

It's about making plant diversity easier to incorporate into modern life.

Nutrition Shouldn't Depend on a Perfect Grocery Week

There will always be a strong argument for eating the real thing.

Buy local vegetables.

Visit farmers' markets.

Try heirloom varieties.

Eat seasonally.

Put different colors on your plate.

In fact, the researchers behind the vegetable biodiversity work specifically encourage people to seek out more diverse varieties through farmers' markets, independent grocers and home gardening.

But nutrition shouldn't become an all-or-nothing proposition.

You can prioritize whole vegetables and use intelligent supplementation.

You can shop for fresh greens and keep ReLive Greens available for mornings when breakfast is rushed.

You can eat a diverse diet and look for additional ways to incorporate plant-derived ingredients and fiber.

The two approaches don't have to compete.

They can complement one another.

The Bigger Problem: We've Made Our Diets Too Narrow

Perhaps the most important lesson from this new research isn't simply that vegetables are disappearing.

It's that diversity itself has value.

Industrialized agriculture has given us extraordinary access to food throughout the year, but it has also concentrated production around crops that are easy to grow, transport, store and sell at scale.

Meanwhile, traditional varieties and lesser-known plants can disappear from farms—and eventually from our diets.

Researchers estimate that 24% of assessed wild relatives of vegetables are at risk of extinction, while more than 1,480 vegetable species face ongoing biodiversity loss.

That's not merely an agricultural issue.

It's a nutrition issue.

Because the future of nutrition isn't simply about calories.

It's about diversity, nutrient density and giving the body access to a wider spectrum of foods and plant compounds.

Start Diversifying Your Nutrition Today

You don't need to wait for the global food system to change before changing what's on your plate.

Try a vegetable you've never eaten.

Rotate your leafy greens instead of buying the same one every week.

Look for locally grown or heirloom produce.

Eat different colors.

And when fresh produce isn't convenient or your diet isn't as varied as you'd like, consider adding ReLive Greens to your daily routine as a convenient complement to a balanced, plant-rich diet.

More plants. More variety. A simpler daily habit.

Discover ReLive Greens

Give your daily nutrition an easy boost of plant diversity with ReLive Greens from The ROOT Brands.

→ SHOP RELIVE GREENS

ReLive Greens is a dietary supplement and is intended to complement, not replace, a varied and balanced diet. Individual nutritional needs vary.

Scientific References

1. van Zonneveld M, et al. Research on global vegetable biodiversity and the need to diversify vegetable production and diets. Proceedings of the National Academy of Sciences (PNAS), 2026. Discussed in ScienceAlert, “The World's Vegetables Are Vanishing, And It's Quietly Wrecking Our Diets,” August 9, 2026.

2. World Health Organization.Healthy Diet. WHO recommends at least 400 g of fruits and vegetables per day for people older than 10 and identifies dietary diversity as a core principle of healthy eating.

3. Aune D, Giovannucci E, Boffetta P, et al. Fruit and vegetable intake and the risk of cardiovascular disease, total cancer and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies. International Journal of Epidemiology. 2017;46(3):1029–1056. The analysis included 95 prospective studies and reported inverse associations between fruit and vegetable intake and several major health outcomes.

4. Wang X, Ouyang Y, Liu J, et al. Fruit and vegetable consumption and mortality from all causes, cardiovascular disease, and cancer: systematic review and dose-response meta-analysis of prospective cohort studies. BMJ. 2014;349. The analysis included 16 prospective cohort studies encompassing 833,234 participants.

5. The ROOT Brands.ReLive Greens. Published product information describes ReLive Greens as a proprietary blend incorporating green superfoods, dark leafy greens, fruits and prebiotic fiber.

6. The ROOT Brands. Published ReLive Greens ingredient information lists green banana flour, inulin, apple fiber, Bacillus coagulans, spirulina, wheat grass, barley grass, alfalfa leaf, flax seed, psyllium husk, chlorella, broccoli, kale, spinach, green cabbage, parsley, aloe vera, cayenne, blueberry, pomegranate and MCT coconut oil.

Related topics: Gut microbiome.