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Which supplements are blood thinners?

blood thinners

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#1 ta5

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Posted 14 April 2013 - 08:18 PM

Can someone tell me which of these supplements are blood thinners? I know fish oil and vitamin E can thin the blood. I'm having trouble finding this info. Thanks.

B Complex
Fish Oil
Gamma E
Gotu Kola
Green Tea Extract
Magnesium Taurate
R-Lipoic Acid
Rhodiola Rosea
Siberian Ginseng

#2 Kevnzworld

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Posted 15 April 2013 - 01:25 AM

It's a controversial topic. I am currently on Xarelto, ( a prescription blood thinner ), so I have to be wary of supplements that might cause additional thinning . Some say CoQ10 does, there's not evidence of it that I've seen. I still take 200 mg of ubiquinol. Fish oil and vitamin E can definitely thin blood in high enough doses. I limit my fish oil and vitamin E, ..2000 mg fish oil, 400 iu tocotrienols, and gamma E.

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#3 niner

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Posted 15 April 2013 - 02:06 AM

I'm not sure why it would be controversial. There's an objective measure of blood clotting ability, known as the Prothrombin Time. This could be measured before and after people are dosed with any supplement, and compared. Maybe the controversy comes in because the measurements haven't been done, so we're stuck with people's claims. I don't know. At any rate, Fish Oil and Vitamin E are known problems. Warfarin is a blood thinner that works by causing a Vitamin K deficiency. Supplemental Vitamin K is antagonistic, but it just normalizes clotting; that doesn't mean that extra vitamin K would "thicken" the blood, or cause excess clotting in someone who didn't take Warfarin, absent some weird genetic defect.

I think that most supplements don't have much of an effect on clotting.

#4 Kevnzworld

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Posted 15 April 2013 - 02:35 AM

The controversy exists because so little is really known about the blood thinning potential of many of the supplements we take, and there are contradictory claims. CoQ10 is a classic example, so is curcumin. . The problem with Coumadin and the PT/ INR tests is that they are so erratic.
The new class of blood thinners like Xerelto can't be reversed with vitamin K like warfarin can. So ingesting other potential anticoagulants or blood thinners can be hazardous .

#5 Luminosity

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Posted 15 April 2013 - 03:13 AM


Is vitamin K a blood thinner? It is for me.

Things that bring down cholesterol could be blood thinners.

#6 Kevnzworld

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Posted 15 April 2013 - 03:37 AM


Is vitamin K a blood thinner? It is for me.

Things that bring down cholesterol could be blood thinners.

Vitamin K regulates blood coagulation . It isn't a blood " thickener " per se. It is an antidote for blood thinners like warfarin. It ISN'T a blood thinner.
" Things " that bring down cholesterol , like statins? Statin therapy isn't contraindicated for people on warfarin...

#7 Luminosity

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Posted 15 April 2013 - 03:47 AM

Natural medicines like Puerh tea, certain supplements, etc.

#8 leanguy

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Posted 15 April 2013 - 04:35 AM

Many antioxidants do. Lipoic Acid, Grape Seed, Resveratrol.

#9 niner

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Posted 15 April 2013 - 11:44 AM

Sounds like we might have multiple definitions for "blood thinner", which doesn't surprise me, since it's a pretty vague term. Are we talking about prothrombin time, or the apparent "viscosity" of blood, or "gee, my blood feels thinner today"? There are other objective measures besides prothrombin time- I'd rather see the data than just hear claims, but it's probably the case that the data doesn't exist on many supplements.

#10 Mind

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Posted 15 April 2013 - 05:40 PM


#11 Adaptogen

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Posted 15 April 2013 - 06:21 PM

does the combination of aspirin and curcumin hold a substantial risk? my dad has been taking low dose aspirin for years, but i would like him to start supplementing with turmeric.

#12 ta5

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Posted 26 September 2013 - 01:26 PM

How long before surgery should one stop taking blood thinners?

I've always heard to stop a week before. Is a week really necessary?

#13 pamojja

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Posted 26 September 2013 - 02:18 PM

I think that most supplements don't have much of an effect on clotting.

That's my experience.

Wanted to see how many of my supplements have increased bleeding as risk. According to NaturalStandard - with my supplements taken in therapeutic doses marked in yellow:

Agents That May Increase Risk of Bleeding or Clotting

Agents reported to cause clinically significant bleeding in case report(s)
Garlic (Allium sativum), ginger, Ginkgo biloba, saw palmetto (Serenoa repens).
Agents that may increase risk of bleeding (based on evidence from basic science, animal study, human case reports/trials, expert opinion, or anecdote)
Acacia, acerola, aconite, agrimony, alfalfa (Medicago sativa)*, aloe, alpha-linolenic acid, alpinia, American ginseng (Panax quinquifolius), American pawpaw, Andrographis paniculata Nees, angelica (Angelica archangelica)*, angel's trumpet, anise (Pimpinella anisum)*, aniseed, annatto, aortic acid, arabinogalactan, arginine (L-arginine), aristolochia, arnica (Arnica montana), asafetida (Ferula asafetida)*, ashwagandha (Withania somnifera L.), aspen bark**, astragalus, avocado (Persea americana), babassu, banaba, barley, Bear's garlic, Bellis perennis, beta-sitosterol, bilberry (Vaccinium myrtillus), birch (Betula barosma)**, black cohosh (Cimifuga racemosa)**, black currant, bladderwrack (Fucus vesiculosis), blessed thistle, bogbean (Menyanthes trifoliata), boldo (Peumus boldus), borage seed oil, breviscapine, bromelain (Anas comosus), bupleurum, burdock (Arctium lappa), calamus, calendula, capsicum, cat's claw (Uncaria tomentosa), celery (Apium graveolens)*, chamomile (Matricaria recutita)*, chaparral (Larrea tridentate (DC) Coville, Larrea divaricata Cav.), chia, chlorella, chondroitin sulfate, cinnamon*, clove (Eugenia aromatica), codonopsis, coenzyme Q10, coleus (Coleus forskohlii), coltsfoot, cordyceps (Cordyceps sinensis), cowhage, cranberry, daisy, dandelion (Taraxacum officinale)*, danshen (Salvia miltiorrhiza), Datura wrightii, desert parsley, devil's claw (Harpagophytum procumbens), DHEA, diallyl trisulfide, dong quai (Angelica sinensis), echistatin, elder, EPA (eicosapentaenoic acid), evening primrose oil (Oenothera biennis)***, fennel (Foeniculum vulgare Mill.), fenugreek (Trigonella foenum-graecum)*, feverfew (Tanacetum parthenium)***, fig (Ficus carica), fisetin, fish oil***, flavonoids, flaxseed/flax powder (not a concern with flaxseed oil), forskolin, fucus, gamma-linolenic acid, gamma-oryzanol, Ganoderma japonicum, garlic (Allium sativum)***, genistein, German chamomile, ginger (Zingiber officinalis)***, ginkgo (Ginkgo biloba)***, ginseng (Panax spp.)***, globe artichoke (Cynara scolymus L.), goldenseal (Hydrastis canadensis L.), grape seed (Vitis vinifera), grapefruit juice, green tea (Camellia sinensis), ground ivy, guarana, guggul (Commiphora mukul), gymnema, gymnestra, hawthorn, heartsease**, hirudin, holy basil, horny goat weed, horse chestnut (Aesculus hippocastanum)*, horseradish (Radicula armoracia), jackfruit, jequirity, jiaogulan, juniper, Kan Jang, kava, kelp, kinetin, kiwi, kudzu, lady's mantle, Lathyrus, lavender, lemongrass, leopard's bane (Arnica montana), licorice (liquorice) (Glycyrrhiza glabra)***, ling zhi, lotus, lovage root, male fern (Dryopteris filix-mas), marjoram, meadowsweet (Spirea/Filipendula ulmaria)**, melatonin, methylsulfonylmethane (MSM), mistletoe, modified citrus pectin, mugwort, mullein, nettle, niacin, nopal, nordihydroguairetic acid (NDGA), northern prickly ash, octacosanol, omega-3 fatty acids, onion, oregano, pagoda tree, pantethine, papain, papaw, papaya, parsley (Petroselinum crispum), passion flower (Passiflora incarnata), PC-SPES, peony, policosanol, polypodium, poplar**, populus, prickly ash (Zanthoxylum spp.)*, propolis, PSK, Pycnogenol® (Pinus pinaster ssp. atlantica), quassia (Picrasma excelsa)*, quercetin, quinine, red clover (Trifolium pratense)*, red yeast rice, rehmannia, reishi (Ganoderma lucidum), resveratrol, rhubarb, Roman chamomile, rose hip, rosemary, rue, rutin, safflower, sage, sarsaparilla**, sassafras, savory, saw palmetto (Serenoa repens), schisandra, scotch broom, sea buckthorn, seaweed, selenium, SHA-10, shea, shiitake mushroom (Lentinus edodes), Siberian ginseng (Eleutherococcus senticosus), sorrel, southern prickly ash, soy***, Spanish bayonet (Yucca spp.), spirulina, St. John's wort, star anise, stinging nettle, strawberry, sweet birch**, sweet clover (Melilotus spp.)*, sweet marjoram, sweet woodruff, tamanu, tamarind, tarragon, taurine, tea, thyme, tonka bean, turmeric (Curcuma longa), usnea, vanilla, verbena, vitamin A, vitamin C***, vitamin E***, wasabi, watercress (Nasturtium officinale), wheatgrass, wild carrot, wild lettuce, willow, willow bark (Salix spp.)**, wintergreen**, yarrow, yew, yohimbe.
Possible pro-coagulant herbs and supplements (based on evidence from basic science, animal study, human case reports/trials, expert opinion, or anecdote)
Abuta, acerola, aconite, African wild potato, agrimony, alfalfa, annatto, apricot, arnica, astragalus, bael, bilberry, black haw, blessed thistle, cat's claw, chlorella, coenzyme Q10, cordyceps, DHEA (dehydroepiandrosterone), dong quai, ginseng, goldenrod, goldenseal, guggul, horsetail, jequirity, jiaogulan, lime, melatonin (multiple cases of prothrombin time (PT) reductions in patients on warfarin, some with minor bleeding possibly due to warfarin), milk thistle, mistletoe, myrcia, nopal, Panax ginseng (may decrease anticoagulant effect of warfarin), psyllium, raspberry, rhubarb, sage, scotch broom, shepherd's purse, skunk cabbage, stinging nettle, tamanu, tea, white oak, white water lily, yarrow.
Vitamin K-rich foods or herbs that may decrease anticoagulant effects of warfarin (Coumadin®) (based on evidence from basic science, animal study, human case reports/trials, expert opinion, or anecdote)
Beet greens, Bolthouse® Bom Dia Acai Berry With Blueberry Juice, broccoli, Brussels sprouts, collard greens, dandelion greens, endive, green pepper, kale, mustard greens, okra, red leaf lettuce, sauerkraut, spinach, spring onions, Swiss chard, turnip greens, white cabbage.
NOTE: Because passionflower, hydroalcoholic extracts, juniper, and Verbena officinalis supply variable quantities of vitamin K, they may lessen the effect of oral anticoagulant therapy.
NOTE: This is not an all-inclusive list.
* Agents with coumarin constituents.
** Agents with salicylate constituents.
*** Agents that inhibit platelets.

Copyright © 2012 Natural Standard. All Rights Reserved.

Practically only the addition of one agent increased bleeding: blood in stool, blood in mucous of the nose, and much more liquid blood (taking glucose readings) - and that's 1 innocent 81mg baby aspirin.

But that's only me, beware.

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#14 synesthesia

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Posted 28 September 2013 - 12:08 AM

I've taken many blood thinning supplements over the years, yet I've never had a problem with bruising, bleeding (gums etc) and even my shaving nicks stop promptly.

My girlfriend on the other hand takes almost no supplements at all, but she does take moderate amounts of aspirin for her headaches. She bruises horribly with the slightest bump and says her shaving nicks hemorrhage for 5 to 10 minutes and she must hold pressure with a tissue on them to make them stop.

Surgical procedures aside, I thing the whole bleeding promoting supplements kerfuffle is substantially overblown. Plavix and other prescription thinners are now prescribed so frequently it seems like everyone will be on them eventually if you live long enough. If the big guns thinners are so safe and good for so many people, I should think the minor thinning effect of most supplements in this category might also be considered as helpful more often than not so long as you are not at substantial risk for a serious GI bleed.

I've noticed anti-supplement propaganda has increased sharply over the last year or so and the bleeding risk is one of the favorite talking points. I'm a 57 year old male and I could use some moderate thinning so I'm not sweating my vitamin-E a bit. It may just save my life! Concern over mixing them with prescription thinners may be a valid point but I just say NO to prescription meds.

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