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High in the Peruvian rainforest grows a climbing plant with hook-shaped thorns that resemble a cat's claw. That is where cat's claw gets its name, in Spanish uña de gato. NOW Foods grinds the bark of this plant, Uncaria tomentosa, and fills vegetarian capsules with 500mg each. The bottle contains 250, a generous supply.
Uncaria tomentosa is a woody vine (a climbing plant that works its way up trees) that can grow up to thirty meters long. It grows in the Amazon region of Peru, Brazil, and Colombia. With its curved thorns, it clings to the trees around it. The Asháninka, an indigenous people of Peru, have used the bark for generations. They brewed a tea from it. Today, cat's claw is used all over the world, usually as ground bark or as an extract. Good to know: there is another related species, Uncaria guianensis, which is also called cat's claw. These capsules specifically contain Uncaria tomentosa.
The bark contains a mixture of plant compounds. The best known are oxindole alkaloids, nitrogen-containing compounds that the plant produces itself. Researchers divide them into two groups: pentacyclic (with five rings in their structure) and tetracyclic (with four). Which group predominates varies by plant and growing location. In addition, it contains polyphenols, tannins (astringent substances that give the bark a somewhat bitter, astringent taste) and plant sterols. What many people do not know: because this product is ground bark and not an extract, you get the full spectrum of substances as they occur in the bark. Not one substance isolated, but the bark itself. Cat's claw supports the immune system.*
The label recommends 2 capsules, 2 to 3 times a day, preferably with a meal. Many people wonder how much cat's claw you need per day. In short: with ground bark, the usual amounts are between 1 and 3 grams per day, and with 2 to 6 capsules you are right in the middle. Feel free to start with 2 capsules per day and see how your stomach reacts. The tannins in the bark can cause some stomach complaints in some people, especially on an empty stomach. In that case, it helps to take the capsules with food. With 250 capsules in the bottle, at 2 capsules per day, you will last about four months.
Cat's claw is intended for adults only and is not recommended during pregnancy and breastfeeding. If you use medications, especially blood thinners, blood pressure medications, or substances that suppress your immune system (such as after a transplant), consult your doctor first. The same applies to autoimmune diseases or if you are having surgery soon. Natural color differences between the capsules are normal, because it is a plant-based product.
Anyone looking for cat's claw as the Asháninka know it, simply the ground bark without extraction or additives, will find a simple and generous supply in this bottle.
*Health claim pending European approval.
Not an extract, but the whole bark, with the full spectrum of plant compounds. Specifically the tomentosa species, not the related guianensis.
At 4 capsules per day, you have a supply for about two months.
With 4 to 6 capsules per day, you adjust the amount between 2 and 3 grams of bark, as indicated on the label.
Only cat claw bark, a cellulose capsule and a little plant-based stearic acid. Suitable for vegans.
* Percentage van de referentie inname volgens Verordening (EU) Nr. 1169/2011.
** Reference intake unknown.
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Cat's claw supports the immune system*. The bark contains oxindole alkaloids, polyphenols and tannins, plant compounds produced by the vine itself. It has been used for generations by indigenous peoples in Peru.
*Health claim pending European approval.
The label recommends 2 capsules, 2 to 3 times a day, so 4 to 6 capsules. That amounts to 2 to 3 grams of bark. Start with the lowest dose and gradually increase it if you tolerate it well.
Most people tolerate it well. Sometimes it can cause mild stomach upset, especially on an empty stomach, due to the tannins in the bark. It is best taken with a meal, and if you are taking medication, consult your doctor.
It is different, not necessarily less potent. An extract is concentrated in certain compounds, while ground bark contains the full spectrum as it occurs in the plant. That is why the dosage in grams is higher, but you get the bark as it has traditionally been used.
These are nitrogen-containing plant compounds that are characteristic of snapdragon. They occur in two groups: pentacyclic and tetracyclic, according to the number of rings in their structure. The ratio between the two varies by plant and by growing location.
They are two completely different plants. Cat's claw (Uncaria tomentosa) is a vine from the Amazon region whose bark is used. Devil's claw (Harpagophytum procumbens) grows in southern Africa, and its root is used.
