Doctor's Note

Want more on oral health? See:
Plant-Based Diets: Oral Health
Black Raspberries versus Oral Cancer
Plant-Based Diets: Dental Health
What’s the Best Mouthwash?

Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the other videos on alternative medicine. Also, there are 1,686 other subjects covered in the rest of my videos--please feel free to explore them as well!

For some more context, please check out my associated blog post:  Do Vegans Get More Cavities? 

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  • Michael Greger M.D.

    Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the other videos on alternative medicine. Also, there are 1,449 other subjects covered in the rest of my videos–please feel free to explore them as well!

  • MissReesa

    I am currently taking 10 mg of prednisone for oral lichen planus and I would love to stop taking it for good! How much purslane so you have to eat daily to keep the lichen planus from flairing up?


      Hello MissReesa,
      Owning a dermatology practice I would like to know too! Start by adding parsllane to your salads. A recipe I have for a similar succulent- type plant is to quickly put the parslane in boiling water to slightly wilt it, drain it then add thinly slices of tomatoes. Monitor your progress. Clinically speaking, check with your doctor about immune deficiencies, as well as check with a biologic dentist for failed amalgams and/or a sensitivity to gold in your teeth. Additional inspiring links to the topic of immunity can be found here

    • Summer17

      Can someone PLEASE clarify how much purslane should be used to treat oral LP daily and in what form?

  • marygreenleaf

    Hello Dr. Greger,
    Thank you for this video!
    I have been diagnosed with oral lichen planus in the gums and will not do the nasty drug route, as it provides no clinical improvement or remission. I am eager to begin taking purslane, and like the previous commentators, would like to know how much to eat. The article cited (Efficacy of Purslane, in the journal Phytotherapy Research) says patients received a single dose of purslane extract in the form of 235 mg capsules—but I can’t tell if the dose was one time only or repeated daily over the course of six months.
    What is the edible equivalent?
    Does it need to be eaten raw or is lightly steaming or cooked as effective?
    I’ve searched every website for purslane supplements, but cannot find any. Do you know if and where they can be purchased?
    P.S.: I and many members of my family became committed vegans after reading your articles and watching your videos. I can’t thank you enough for all of your public service activities.

    • Jeannie Pollak

      I was diagnosed with lichen planus in March 2013. Thankfully I saw your video about purslane very soon after and I eat a
      minimum of 4 ounces of raw purslane every day. I don’t have to take
      any drugs for my symptoms any longer and the progression has stopped. I
      also take 2 standardized olive leaf capsules a day which seems to
      strengthen the immunity. I did some research and saw that thiazide
      drugs are linked to the development of Lichen Planus and I was taking
      Hydroclorityiazide for blood pressure. I stopped taking it and started
      drinking more beet juice, meditating and doing some CBT for my panic
      attacks and my blood pressure is now as good or better than when I was
      on the drug. I am 63 and a vegan for 7 years. I also take some Chinese
      herbs for the blood pressure. Another thinkg I saw was some research
      linking invisalign braces to Lichen Planus. I have had invisalign since
      2/1/11 so I had a retainer made out of stainless steel and acyrilic.
      All of these things have stopped the progression of this illness. Hope
      this helps someone else.

      • Melissa

        Thank you for this. I had a gum biopsy and do not have all the major symptoms of OLP but it is pointing in that direction. I guess a milder version. I will try using the purslane if I can find it and the Olive Leaf caps.

  • mobell1

    Could you give any hope for lichen planus on the skin but not oral, of a 10 year old girl? As far as I know, her paternal grandmother had it.

    • Ferdinand

      Check out the paleo approach, the author (Sarah) has (had) LP herself and healed it through diet

  • Christina

    Thank you so much Dr. Greger for the information about purslane as a treatment for oral lichen planus!…I have endured constant pain from OLP for 2 years….doctor did a biopsy which led to the diagnosis but none of my dr’s have any idea how to treat it…I will definitely be back to your site and thank you for the work you do.Christina

  • Jeannie Pollak

    I have lichen planus and your suggestion to use purslane has really cut down on the inflammation. I want to know if there is any way to cure it? I will try anything.

    • aries

      Immediately make dietary changes, no refine salt, less sugar, no yeast, no dairy products, no sour foods lemon tamarind tomatoes vinegar. No sesame oil and seeds. Avoid refined flours. Take homeopathy. Do yoga and reduce stress let go.

  • LichenPlanusPurslane

    Doctor, my urologist recently diagnosed me with genital lichen planus, although what I have doesn’t look to me like lichen planus pictures I’ve seen, he is a very respected guy, but I need a second opinion. Does the purslane work for this type of lichen planus? Can I get extract of purslane? What dosages would you recommend? I am 55, male and 235 lbs.

    Thank you.

    • Basil

      Before i jump off a high bridge I would like to ask if there is any nutritional remedy for lichen sclerosis. I’m a male and this is devastating to say the least…

      • aries

        Ayurveda is d key to all types of LP read my reply above. See if allopathy works. Else try homeo and then ayurveda. All d best

  • Barbara

    could this also work for lichen sclerosis and if not, is there anything other than steroids that help

  • HappyNow

    Thank you Dr. Greger

  • HappyNow

    I have used this plant I bought it at Lowes for Oral lichen Planus I am completely healed this is so great! I have pictures I would love to show anyone interested . My primary care doctor told me this wasn’t going to go away . Well I’m proud to say it has !!!!!!!!!!Thank you Dr. Greger for the work you do .

    • Zahi Hazer

      How can i bought it ? i live in lebanon what is the Lowes?

    • Patty

      Would be interested in knowing genus/species of plant “Happy” purchased at Lowe’s. My lichen planus presented almost 2 years ago. .. reasonably under control. Occasional flare – ups. Got purslane start from a friend but hasn’t grown fast enough to eat that much on a regular basis. Thank you Dr Gregor. Patty

      • Happy Now

        Portulaca oleracea (common purslane, also known as verdolaga, pigweed, little hogweed, red root, pursley, and moss . Hope it’s not too
        Late to share this!

    • Summer17

      All these comments and no one can give specifics on how much purslane was used to help with oral LP?

      Would appreciate any guidance…. should capsules be used and swallowed, and if so how much? Or do you chew on the leaves? and again – how much?

      • Justine Haythe

        Summer17 I take the pu

        • Justine

          Summer17 I take Purslane capsules 400 mg and they work. I have a bad case OLP. It really works. You take one pill a day. You still have to watch what you eat and drink. I got them on from Swanson it contains 60 pills. The cost is $7.99 a bottle. Good Luck.

  • Pam

    I have been diagnosed with oral and esophagus lichen planus. What do I need to do to have a thin to liquid diet while I wait to be treated. (insurance company needs to be pre approved)

    • Dendrology

      I was also diagnosed with Oral Lichen Planus many years ago. I was embarrassed to laugh with my mouth open because of the way my tongue looked. When I saw a small study showing that purslane controlled and sometimes reversed OLP I decided to give it a try. And it works. I purchase mine in a dessicated (powdered) form from a Canadian company called Natural Plantations. They sell capsules as well, but the powdered form is the most economical. 1/8 tsp per day in water (or your smoothie, juice, etc.) I also use the shampoo and conditioner as my scalp has problems with lichen planus and it seems to control this as well. Very knowledgeable company owner, good service. Purslane is an outstanding anti-oxidant.