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    "original_url": "https:\/\/www.nytimes.com\/2026\/09\/29\/well\/eat\/nutrition-30-plants-a-week.html?emc=edit_nn_20261001&nl=the-morning&segment_id=227346",
    "parsed_content": "Ask WellDo I Really Need to Eat 30 Different Plants Each Week?The 30-plant goal has crept into the lexicon of the online wellness world. We asked experts where it came from, and whether it\u2019s legitimate.Credit...Eric Helgas for The New York TimesSkip to contentSkip to site indexSearch & Section NavigationSection NavigationAccountAccountGoHome U.S.SECTIONSU.S.PoliticsNew YorkCaliforniaEducationHealthObituariesScienceClimateWeatherSportsBusinessTechThe UpshotThe MagazineTOP STORIESDonald TrumpSupreme CourtCongressImmigrationAbortionLatest PollsNEWSLETTERSThe MorningMake sense of the day\u2019s news and ideas.The EveningCatch up on big news, and wind down to end your day.See all newslettersPODCASTSThe DailyThe biggest stories of our time, in 20 minutes a day.See all podcastsWorldSECTIONSWorldAfricaAmericasAsiaAustraliaCanadaEuropeMiddle EastScienceClimateWeatherHealthObituariesTOP STORIESMiddle East CrisisRussia-Ukraine WarChina International RelationsThe Global ProfileLeer en Espa\u00f1olNEWSLETTERSThe WorldA guide to understanding the news, made for readers around the globe.Your Places: Global UpdateThe latest news for any part of the world you select.Canada LetterBackstories and analysis from our Canadian correspondents.See all newslettersBusinessSECTIONSBusinessTechEconomyMediaFinance and MarketsDealBookPersonal TechEnergy TransitionYour MoneyTOP STORIESU.S. EconomyStock MarketArtificial IntelligenceNEWSLETTERSDealBookThe most crucial business and policy news you need to know.On TechOur best tech reporting from the week.See all newslettersPODCASTSHard ForkOur tech journalists help you make sense of the rapidly changing tech world.See all podcastsArtsSECTIONSToday's ArtsBook ReviewBest SellersDanceMoviesMusicTelevisionTheaterPop CultureT MagazineVisual ArtsRECOMMENDATIONS100 Best Movies of the 21st CenturyCritic\u2019s PicksWhat to ReadWhat to WatchWhat to Listen To5 Minutes to Make You Love MusicNEWSLETTERSBooksReviews, news and features to help you find your next read.WatchingStreaming TV and movie recommendations.See all newslettersPODCASTSBook ReviewThe podcast that takes you inside the literary world.PopcastPop music news, new songs and albums, and artists of note.See all podcastsLifestyleSECTIONSAll LifestyleWellTravelStyleReal EstateFoodLoveYour MoneyPersonal TechT MagazineCOLUMNS36 HoursAsk WellThe HuntModern LoveWhere to EatVowsSocial Q\u2019sThe EthicistAsk the TherapistNEWSLETTERSThe WeekenderUnwind with stories about culture and the way we live.WellEssential news and guidance to live your healthiest life.See all newslettersPODCASTSModern LoveThe complicated love lives of real people.See all podcastsOpinionSECTIONSOpinionGuest EssaysEditorialsOp-DocsVideosLettersTOPICSPoliticsWorldBusinessTechClimateHealthCultureCOLUMNISTSJamelle BouieMaureen DowdDavid FrenchThomas L. 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Win ProjectionsNEWSLETTERSThe PulseDelivering the top stories in sports, Sunday to Friday.See all newslettersPLAYConnections: Sports Edition Connections: Soccer Edition Connections Coach U.S.InternationalCanadaEspa\u00f1ol\u4e2d\u6587Ask WellDo I Really Need to Eat 30 Different Plants Each Week?The 30-plant goal has crept into the lexicon of the online wellness world. We asked experts where it came from, and whether it\u2019s legitimate.Credit...Eric Helgas for The New York TimesSupported bySKIP ADVERTISEMENTShare full articleBy Alice CallahanSept. 29, 2026Leer en espa\u00f1olQ: I\u2019ve heard that I should eat at least 30 unique plant foods a week for my health. Is that true?When Kathryn Smith, 26, a surgical athletic trainer in Atlanta, first heard on a podcast that eating 30 different plants every week could improve her health, she liked the idea of having a tangible goal.She began making homemade granola with oats, nuts and seeds; salsas with chili peppers, cucumber, avocado and herbs; and bean salads with corn, tomatoes and mango.The idea of eating 30 (or more) plants each week \u2014 including fruits, vegetables, whole grains, legumes, nuts, seeds, herbs and spices \u2014 has taken the wellness world by storm. It has spawned apps that track how many plants you eat and supplements advertising 30 or more plants per capsule or scoop. Thousands of social media posts have mentioned the practice, with many touting benefits like lower inflammation, better heart health, more energy, a stronger immune system and a longer life.Eating 30 plants a week, some influencers, podcasters and physicians say, will diversify your gut microbiome and in turn, improve your health. Does the evidence match the buzz? We asked experts to help us break it down.AdvertisementSKIP ADVERTISEMENTWhat the Research SuggestsEating 30 different plants per week is a catchy notion, said Justin Sonnenburg, a professor of microbiology and immunology at Stanford Medicine. But while consuming plenty of vegetables, whole grains and other plants is good for your health, there isn\u2019t strong evidence that the 30-plant target is a \u201cmagical threshold,\u201d he said.Its origin traces back to an analysis from 2018, in which researchers compared stool samples from 85 adults living in the United States and Britain. About half of the adults said they typically ate 10 or fewer unique plants per week; the rest said they ate 30 or more. Those in the latter group had significantly more diverse gut microbiomes, said Rob Knight, a microbiome scientist at the University of California, San Diego, who led the study.It makes sense that eating a variety of plants could encourage microbiome diversity, Dr. Knight said. Gut microbes are primarily nourished by fiber, so in theory, eating different types of fiber promotes the growth of different kinds of microbes. Researchers have found that less diverse gut microbiomes are generally associated with poorer health.The study had limitations, however, said Anissa Armet, a nutrition researcher at the University of Alberta in Canada. It was small and relied on participants\u2019 estimations of how many plants they typically ate each week, which could have been inaccurate, she said. And it showed only an association between eating more plants and microbiome diversity; it didn\u2019t prove causation. When Dr. Knight and his colleagues did a larger analysis using data from more than 3,000 adults, they found that eating 11 to 20 plants per week was associated with similar microbiome diversity as eating 30 or more. Meaning, it wasn\u2019t necessary to eat 30 plants to see the benefits, Dr. Knight said. That analysis, however, has not been peer-reviewed or published.AdvertisementSKIP ADVERTISEMENTA few limited studies have since tested variations on the 30-plant target, Dr. Armet said. In a 2025 trial involving 25 adults with chronic kidney disease in Australia, researchers found that consuming 30 or more plants per week (compared with 15 or fewer) led to less constipation and more favorable markers of gut health. And in a trial involving about 400 adults published in July, researchers found that those who took a \u201c30-plant\u201d supplement for six weeks reported less constipation, but had no increase in microbiome diversity, relative to study participants who took a probiotic supplement or a placebo made from bread croutons. (The study was funded by ZOE, the company that sells the supplement.)Because the participants in both studies increased their fiber consumption in pursuit of the 30-plant goal, the researchers couldn\u2019t say whether the increase in the variety of plants, the extra fiber or a combination of the two was responsible for the benefits, Dr. Armet said.And contrary to some online claims, she added, there\u2019s no evidence that 30 plants per week is an optimal amount to reduce inflammation, improve heart or immune health, increase energy or prolong life-span.That said, research generally supports the benefits of eating a variety of plant foods; it just doesn\u2019t back the 30-plant target, Dr. Sonnenburg said. People\u2019s microbiomes are complex and unique; there\u2019s no one-size-fits-all advice, he added.The Bottom LineIf you enjoy the challenge of eating 30 plants a week, go for it, said Lourdes Castro, a dietitian and adjunct professor of nutrition at New York University. It may help you eat more fiber and more diverse foods, which can benefit your health, she said.AdvertisementSKIP ADVERTISEMENTBut some people might feel overwhelmed by tracking their meals or anxious about meeting the target, Ms. Castro said.A more evidence-based goal, Dr. Armet said, would be to consume the recommended amount of fiber \u2014 21 to 38 grams per day, depending on your age and sex \u2014 from a variety of plant foods.And skip the supplements, Dr. Sonnenburg said. \u201cWhole foods are better.\u201dAdvertisementSKIP ADVERTISEMENT",
    "published_at": "2026-09-29T09:00:25+00:00",
    "author_name": "Alice Callahan",
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    "ai_headline": "Do I Really Need to Eat 30 Different Plants Each Week?",
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