now browsing by category


Beyond Curcumin: Why Turmeric Is Not the Same as Curcumin

© 28th January 2020 GreenMedInfo LLC. This work is reproduced and distributed with the permission of GreenMedInfo LLC. Want to learn more from GreenMedInfo? Sign up for the newsletter here
Reproduced from original article:

Posted on:  Tuesday, January 28th 2020 at 10:30 am

When hearing about turmeric, curcumin gets all the glory, but this ancient healing root contains other impressive compounds too, like turmerosaccharides. If you haven’t heard of them before, here’s why you should

Turmeric is a hot topic here at For example, you can read about how Science Confirms Turmeric As Effective As 14 Drugs600 Reasons Turmeric May Be the World’s Most Important Herb and even How WHOLE Turmeric Heals the Damaged Brain.

Yet, here’s what most people — even health and nutrition enthusiasts — often don’t realize. Despite the two often being referred to interchangeably, turmeric is actually far different than the popular supplement ingredient curcumin.

Sure, curcumin is derived from turmeric, but when it comes to their uses, benefits and bioavailability, the differences between turmeric and curcumin are quite significant, and in this article you’ll discover exactly why, and why you may want to think beyond curcumin when it comes to using turmeric in your diet.

Turmeric Versus Curcumin

Turmeric is just a root, and technically the root of Curcuma longa, which is a flowering plant of the ginger family. It contains many bioactive plant substances, but one particular group, the curcuminoids, are often touted as possessing the biggest health-promoting bang-for-your-buck. These curcuminoids include demethoxycurcumin, bisdemethoxycurcumin and — you guessed it — curcumin.

But curcumin is only present at about 2% to 8% concentration in the average turmeric preparation.[i] Curcumin is well-known for its anti-inflammatory, anti-carcinogenic and antioxidant effects, but if curcumin is all that you’re relying on for the benefits of curcumin, you’re technically missing out on 92% to 98% of the other plant bioactive compounds in the whole turmeric root.

Don’t feel bad about being on the curcumin bandwagon. After all, curcumin is the most studied curcuminoid and is also the most abundant curcuminoid found in turmeric.

The Problem With Curcumin

But there’s a problem. Despite its wide array of potential benefits, the actual bioavailability of curcumin in humans and animals is quite low. Curcumin also has a high rate of metabolization and rapid systemic clearance.

So getting enough curcumin into your system to reach blood levels sufficient to exert the benefits shown in research requires consuming around 3 to 5 teaspoons of turmeric powder a day. And that’s a lot of turmeric, along with posing a high risk of having a constantly yellowish-orange stained mouth.

Even then, curcumin is so poorly absorbed that it often needs to be combined with something that can increase its bioavailability. One quite popular example of this is an extract found in black pepper. On many supplement labels, you’ll see listed a patented extract obtained from black pepper fruits called BioPerine, which is commonly used as a curcumin bioavailability enhancer.

Another strategy to increase the bioavailability of curcumin is via the use of phytosomes, which are plant extracts that are bound to phosphatidylcholine. Once attached to phosphatidylcholine, there is much higher absorption of curcumin (up to 30 times more bioavailability).

Finally, we get to the biggest problem with curcumin: if you’re relying on it as your only source to obtain the benefits of turmeric, then you’re missing out on other components of this impressive root.

Beyond Curcumin

I don’t quite understand why we seem to myopically focus on curcumin in the health, nutrition and supplement industry.

After all, the entire turmeric rhizome has been used in Ayurvedic medicine for over 4,000 years, and during most of this time there was no fancy technology such as a patented Bioperine extract or phosphatidylcholine molecules in supplement form to increase bioavailability of the curcumin, nor was there technology to extract appreciable amounts of curcumin from the turmeric.

Instead, turmeric’s long history of culinary, medicinal and cosmetic use in India includes water-based preparations for internal use (known as Kashaya), fat-based (oil, ghee) preparations for internal use (known as Sneha), and powder preparation for internal use (known as Churna). Consider this anecdote from the book “Herbal Medicine: Biomolecular and Clinical Aspects”:

“The use of turmeric dates back nearly 4000 years to the Vedic culture in India, where it was used as a culinary spice and had some religious significance. It probably reached China by 700 ad, East Africa by 800 ad, West Africa by 1200 ad, and Jamaica in the eighteenth century. In 1280, Marco Polo described this spice, marveling at a vegetable that exhibited qualities so similar to that of saffron.

According to Sanskrit medical treatises and Ayurvedic and Unani systems, turmeric has a long history of medicinal use in South Asia. Susruta’s Ayurvedic Compendium, dating back to 250 bc, recommends an ointment containing turmeric to relieve the effects of poisoned food.”

You can read more about turmeric’s journey from traditional to modern medicine in “Herbal Medicine: Biomolecular and Clinical Aspects”.[ii]

If these ancient healers have been harnessing the power of turmeric via fresh juice, teas, tinctures and powders, as well as using it topically in the form of creams, lotions, pastes and ointments, then why has most of the research up until very recently been centered around the curcuminoids — which, as mentioned, are a fraction of 2% to 8% of the plant?

These traditional healing and food practices related to the use of turmeric indicate that it’s not just the curcuminoid component of turmeric that is likely to possess physiological benefits. Enter turmerosaccharides.

Turmerosaccharides are water-soluble bioactive polysaccharides extracted from that remaining 90+% percent of the turmeric root. The fact that turmerosaccharides are water-soluble means that all of the good stuff is more easily absorbed into the tissues of your body and metabolized more quickly than the curcumin-based fat-soluble components of turmeric.

How Turmerosaccharides Work

The first property of turmerosaccharides that makes them more desirable is the fact that they are naturally water-soluble. Through a steam extraction process, turmerosaccharides are isolated from the turmeric oil, without the need for using any harsh solvents. This means the bioavailability of turmerosaccharides is significantly higher than that of curcumin.

In addition, the effects of tumerosaccharides on your body are astounding, especially if you’re active or suffer from soreness from overexertion. A 2013 study found that turmerosaccharides reduced joint tenderness, crepitation, swelling and effusion related to overuse, while increasing joint function and flexibility.[iii] Patients with primary knee osteoarthritis received either turmerosaccharides, glucosamine sulfate, a combination of turmerosaccharides and glucosamine sulfate, or a placebo for 42 days. The efficacy of the different treatments was assessed during the treatment period, on both day 21 and day 42 of the study.

The analysis of post-treatment scores following the administration of turmerosaccharides at each clinical visit showed a significant decrease in joint issues compared to the placebo. The turmerosaccharides-treated group also showed a significant decrease in the use of their standard medication, along with clinical and subjective improvement compared to placebo.

Another study investigated turmerosaccharides’ effect on human knee cartilage and found that it protects cartilage homeostasis,[iv] which means that it balances out the natural rate of synthesis and degradation, keeping joints happily balanced. Interleukin 1 beta (a natural protein involved with inflammation) and hydrogen peroxide (which is generally toxic to cells) are both bad news bears for chondrocytes, which are your cartilage-producing cells.

This study looked at the effects of turmerosaccharides by exposing these chondrocytes to these toxins with and without turmerosaccharides, then measuring markers indicating cell degradation, aging and death, as well as cartilage creation, degradation and general inflammation.

The presence of turmerosaccharides decreased cartilage cell destruction and general inflammation in the knee cartilage cells, and also protected compounds that improve cartilage creation, such as glycosaminoglycans and type II collagen.

In other studies, turmerosaccharides were shown to significantly reduce acute and chronic inflammation and support a balanced inflammatory response[v] as well as increase gene expression of type II collagen.[vi]

Where Can You Find Turmerosaccharides?

So by now, you’re probably wondering where you can actually get turmerosaccharides. One easy option would be to find high-quality turmeric root grown in clean soil, and then boil it in water, preferably via a decoction method, which involves a long simmering process in hot water, and can work quite well for a variety of hard, woody herbs and spices, such as roots, bark and stems.

Another option is to look for nutritional supplements that contain Turmacin® — which is a water-soluble extract of turmeric that contains high amounts of turmerosaccharides. And there’s absolutely no reason that you can’t co-consume turmerosaccharides along with curcumin to get even more benefits out of the wonderful turmeric root.

For more on turmeric, curcumin and other ancestral and modern scientific ways to enhance recovery and decrease inflammation, you can read Chapter 14 of my new book “Boundless”, which tackles more on healing the body more quickly from injuries, inflammation and hard workouts.


[i] Biofactors. 2013 Jan-Feb;39(1):78-87. doi: 10.1002/biof.1074. Epub 2013 Jan 22.

[ii] Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition. Chapter 13, Turmeric, the Golden Spice

[iii] Inflammopharmacology. 2013 Apr;21(2):129-36. doi: 10.1007/s10787-012-0163-3. Epub 2012 Dec 16.

[iv] Inflammopharmacology. 2018 Oct;26(5):1233-1243. doi: 10.1007/s10787-017-0433-1. Epub 2018 Jan 8.

[v] Antiinflamm Antiallergy Agents Med Chem. 2015;14(1):53-62.

[vi] Inflammopharmacology. 2018 Oct;26(5):1233-1243. doi: 10.1007/s10787-017-0433-1. Epub 2018 Jan 8.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of GreenMedInfo or its staff.

Collagen benefits skin and joints, study confirms

Reproduced from original article:

Analysis by Dr. Joseph Mercola     
July 15, 2019
Download the video transcript

Story at-a-glance

  • Collagen is the most common and abundant of your body’s proteins, one of its primary purposes being to provide structural scaffolding for your various tissues to allow them to stretch while still maintaining tissue integrity
  • Collagen supplements allow for certain peptides to enter your bloodstream intact, before they’re broken down into their component parts in your digestive system, thereby benefiting connective tissues throughout your body
  • A peptide known as prolyl-hydroxyproline, in particular, which plays a role in skin health and repair, has been shown to enter the bloodstream intact
  • Oral collagen has been shown to increase skin elasticity, hydration and collagen density in the dermis of older women
  • Collagen may also help reduce joint pain, improve wound healing, improve blood pressure and reduce cardiovascular damage, improve glucose tolerance, strengthen bones and improve osteoporosis

Collagen is the most common and abundant of your body’s proteins, which makes sense when you consider one of its primary purposes is to provide structural scaffolding for your various tissues to allow them to stretch while still maintaining tissue integrity.1

Collagen makes up anywhere from 25%2 to 30%3 of the total proteins in your body, and as much as 70% to 80% of the protein in your skin,4 in terms of dry weight.

It’s found specifically in the connective tissues throughout your body,5 from your muscles, bones and tendons to your blood vessels and digestive system. As a compound of essential amino acids, there’s only one way to get collagen: Your body can’t produce it, so you must obtain it through your diet.

Historically, traditional diets provided ample collagen in the form of broth made from boiled chicken feet or beef bones. Today, few remember and value homemade bone broth as a key staple, which has led to an entire industry of collagen supplements.

While they certainly can be helpful, not all supplements are made alike. If you’re looking to buy a collagen supplement it’s important to know what to look for on the label before you bring that product home. In other words, it’s a case of “buyer beware,” as laboratory testing6 has revealed many popular collagen and bone broth products contain contaminants, from antibiotics and prescription drug metabolites to parabens and insecticides.

Besides highlighting the hazards of nonorganic products, doubts have been raised as to whether collagen could really even benefit skin and connective tissue at all, as it was believed it likely would not be able to survive digestion. However, more recent research7 has provided a biological mechanism for how collagen works, showing certain peptides do in fact make it intact into the bloodstream. But before we get into that, let’s review some of the basics.

Types of collagen

While many different types of collagen have been scientifically identified, 80% to 90% of the collagen in your body fall into the following three categories:8

  • Type I9 — The most abundant type, found in skin/hide, tendon, connective tissue and bone of all vertebrates. In supplements, Type I collagen may be derived from cows, pigs, chicken and/or fish
  • Type II10 — A primary component of cartilage. Type II collagen supplements are typically derived from poultry
  • Type III11 — Fibrous protein found in bone, tendon, cartilage and connective tissues. Supplements containing Type 3 may be derived from cows, pigs, chicken and/or fish

Types of collagen supplements

Collagen supplements can be either unhydrolyzed (undenatured) or hydrolyzed (denatured). Hydrolyzation refers to a processing technique that breaks the molecules down into smaller fragments, thereby enhancing intestinal absorption.12 Since unhydrolyzed, natural collagen molecules are poorly absorbed due to their large size, most collagen products, whether topical or ingestible, are hydrolyzed.

However, as I’ll discuss further below, the processing that most collagen supplements go through to become hydrolyzed may mean the end product has some byproducts in it you’d really rather not consume. This raises questions about which way to go: Should you buy the unhydrolyzed product and possibly not get the full benefits of the collagen, or opt for the hydrolyzed one, which may come with unwanted byproducts?

An argument can be made for unhydrolyzed products, as they will typically contain a wider spectrum of preserved amino acids, or peptides. On the other hand, hydrolyzed collagen is described as having greater bioavailability mainly because it has isolated, or broken-down, peptides. But unhydrolyzed collagen has these isolated peptides too — which can make it even more confusing if you’re new to these terms.

To make it simpler, think of it this way: You need a good balance of amino acids like methionine and glycine — and when you isolate peptides, this balance is disrupted. Since your body breaks down the different collagen types through its own enzymatic hydrolysis, it’s helpful to know that unhydrolyzed collagen contains a wider range of amino acids. This means you’ll also get a more balanced ratio of complementary amino acids, and not just the isolated peptides you get with the hydrolyzed product.

The argument here is nearly identical to the argument of whey protein concentrate versus isolate. Concentrates have a more natural profile, yet isolates are marketed as more bioavailable.

The thing is, with collagen, to isolate the peptides, the product must undergo harsh processing, which may negate some of its advertised benefits. This underscores why it’s so important to learn everything you can about the product you’re buying before you make the actual purchase. First, though, here is some information about how a collagen supplement might help you.


​Save 36% on Vitamin D3 & K2 90-Day Supply

How collagen benefits your skin

As mentioned, there’s been some debate as to whether collagen is able to survive digestion. Like collagen, many other foods contain amino acids, and if collagen is simply broken down into separate amino acids as it goes through the digestive process, why would it be specifically beneficial for ligaments, joints and skin, more so than any other amino acid-rich food?

As it turns out, hydrolyzed collagen does allow certain peptides to enter your bloodstream intact, before they’re broken down into their component parts. Specifically, a peptide known as prolyl-hydroxyproline (Pro-Hyp), which plays a role in skin health and repair,13,14 has been shown to remain intact. As noted in a 2017 study15 published in the Journal of Agricultural and Food Chemistry:

“Previous studies have shown that the oral ingestion of collagen hydrolysate leads to elevated levels of collagen-derived peptides in the blood, but whether these peptides reach the skin remains unclear.

Here, we analyzed the plasma concentration of collagen-derived peptides after ingestion of high tripeptide containing collagen hydrolysate in humans.

We identified 17 types of collagen-derived peptides transiently, with a particular enrichment in Gly-Pro-Hyp … Therefore, we propose that functional peptides can be transferred to the skin by dietary supplements of collagen.”

Similarly, Caroline Brochard-Garnier, communication manager for Rousselot, a producer of gelatin and collagen products for the drug, food and nutritional markets, explained the mechanism of action to in a March 2015 article:16

“When a collagen peptide preparation with optimized molecular weight and proven bioavailability is ingested, small collagen peptides are absorbed quickly into the blood stream.

The presence of these peptides in skin tissue, stimulate skin cells (fibroblasts) and activate multiple biochemical pathways which in turn leads to a response which is widely accepted:

Small collagen peptides are believed to act as a false signal of the destruction of collagen in the body, triggering the synthesis of new collagen fibers, which in turn increases skin suppleness and reduces the formation of wrinkles. In addition, the synthesis of hyaluronic acid is stimulated which leads to an increase in skin hydration.”

Research supporting the use of collagen for skin health

A number of studies have demonstrated collagen has beneficial effects on skin, helping mitigate age-related wrinkles, for example. Among them:

A 2014 study17 in the journal Skin Pharmacology and Physiology found older women who took Type I collagen experienced “a statistically significant increase in skin elasticity,” after eight weeks. They also observed improved skin hydration in elderly women, although those results “did not reach a level of statistical significance.”

A 2015 study18 in the Journal of Medical Nutrition & Nutraceuticals found post-menopausal women given a collagen beverage experienced improvements in the look and feel of their skin.

According to the authors, “This study shows that the oral nutritional supplement consisting of hydrolyzed collagen, hyaluronic acid and essential vitamins and minerals, leads to a significant improvement in wrinkle depth. It is also able to induce noticeable improvement in elasticity and hydration of the skin.” They also highlighted the results of previous research:

“Three studies from Japan in particular have demonstrated a clear effect. The benefits of daily ingestion of hydrolyzed collagen (10 g) on skin hydration of 20 healthy Japanese women compared to the placebo group (19 volunteers) were evaluated by Sumida et al.

In comparison with the placebo group, gradual improvement of water absorption capacity was observed through 60 days in volunteers who ingested collagen peptides. Matsumoto et al. presented results of a trial also suggesting that a daily ingestion of collagen peptides improve skin hydration.

The authors reported subjective improvement of the skin condition of woman’s volunteers after ingestion of fish collagen peptides for 6 weeks. The percentage of positive response between the subjects was very high.

This study was followed by a double-blind placebo-controlled study by the same research group on healthy women volunteers aged 25-45. In this study 2.5, 5 and 10 g of fish collagen peptide were administered and compared to the placebo.

The hydration of the stratum corneum was measured at baseline and after 4 weeks. A significant difference was observed in subjects older than 30 years between the treated group (5 g and 10 g) and placebo.”

Most recently, a systematic review19 published in January 2019 — which analyzed 11 studies using either collagen hydrolysate or a collagen tripeptide supplement at dosages ranging between 2.5 grams and 10 grams per day for eight to 24 weeks — concluded, “Preliminary results are promising for the short and long-term use of oral collagen supplements for wound healing and skin aging.”

Specifically, oral collagen was found to “increase skin elasticity, hydration and dermal collagen density.”

Other health benefits of collagen

Collagen has also been shown to impart other valuable health benefits, including but not limited to the following:

  • Reducing joint pain and stiffness20
  • Improving wound healing21,22
  • Improving blood pressure and reducing cardiovascular damage23
  • Improving glucose tolerance24
  • Strengthening bones25,26 and improving osteoporosis27

Some of the benefits of collagen may also be attributable to the glycine it contains. While collagen contains 20 amino acids, glycine is one of the three predominant ones.28 Glycine (and collagen, being a source of glycine) inhibits the consumption of NADPH, thereby lowering inflammation and oxidative damage in your body.

NADPH, or nicotinamide adenine dinucleotide phosphate, is used as a reductive reservoir of electrons to recharge antioxidants once they become oxidized. NADPH is also necessary to make your steroid hormones and fats.

As discussed in this previous article about NADPH, glycine supplementation may be beneficial for the prevention and/or treatment of metabolic syndrome, complications from diabetes, cardiac hypertrophy, and alcoholic and nonalcoholic liver disorders.

Collagen versus gelatin

Gelatin29 is a staple in paleo-based diets. The difference between collagen and gelatin is that collagen is the raw material, and gelatin is what you get when you cook the collagen.30

If you’ve ever made homemade bone broth, you’ll find it forms a layer of gelatin at the top when it cools. That’s the collagen from the bones and cartilage that has turned into gelatin, a formidable superfood.

In fact, making your own bone broth from the bones of organic grass fed or pastured animals is one of the best (and most inexpensive) ways to get healthy collagen into your diet.

On the other hand, hydrolyzed collagen (also called collagen hydrolysate) requires more intensive processing and cannot be produced at home. This processing is also one of its most significant drawbacks.

You likely will never find an organic hydrolyzed collagen on the market, because it is often a byproduct from the leather industry. When you see a product is made from hides, it is best to ask questions about how that collagen is removed from the hides. Many tanneries use sulfuric acid and chromium salts during processing.

Hydrolyzed collagen and gelatin are similar but not identical. While both products contain the same amino acids, they have different chemical properties and therefore differ in how you can use them. For example:

Both gelatin and hydrolyzed collagen have gut-healing properties (which is why they’re a staple in the GAPS diet), aiding digestion, reducing inflammation and restoring your gut lining,31 although hydrolyzed collagen tends to be more easily digested.

Since hydrolyzed collagen has been broken down into smaller components, it can dissolve in both cold and hot liquids, whereas gelatin will only dissolve in hot liquid. And, since hydrolyzed collagen will not gel, it cannot be used as a substitute for gelatin in dishes like puddings and sauces.

Beware: Most nonorganic collagen supplements are contaminated

As mentioned, food testing32 by the Consumer Wellness Center (CWC) in 2017 revealed many nonorganic poultry-based collagen products contain potentially hazardous contaminants typically associated with concentrated animal feeding operations (CAFOs).

The results suggest CAFO animal byproducts are routinely used to make nonorganic collagen products, so to avoid contaminants, you’d be wise to make sure it’s 100% organic. The testing in question looked at eight bone broth and bone broth protein products, selected based on their popularity on Contaminants claimed to be found in some of these products included:33

  • Butylparaben, an endocrine-disrupting chemical associated with reduced testosterone levels34 and abnormal shape, size and motility of sperm35,36
  • Cyclandelate, a vasodilator drug
  • Netilmicin, an antibiotic

As noted by the CWC: 37

“To clarify, these tests were conducted on non-organic products derived from animals, and in that category almost every product on the shelf will likely show trace amounts of antibiotics, insecticides and certain pharmacological drugs. These are widely used throughout the animal-based food supply, and many of those chemicals remain intact through processing and packaging.”

While the CWC stressed that none of the products tested were “acutely dangerous or running afoul of FDA regulations,” the take-home message, in my view, is that if you’re going to use a poultry-based collagen supplement, make sure it’s certified “100% Organic” by the U.S. Department of Agriculture,38 the only organic label that relates to food.

Factory farmed animal products are problematic for many reasons, such as accelerating antibiotic resistance, poor conditions for the animals, and because the farms contribute to severe environmental pollution. If you do not consume CAFO meats, you probably would not want to consume CAFO collagen and bone broth products either.

All things considered, my personal preference is to use a less denatured (unhydrolyzed) organic collagen supplement, as it has a more balanced amino acid profile or, better yet, simply make homemade bone broth using bones and connective tissue from grass fed, organically raised animals. It’s the most natural approach of all and is, in my view, the best way to get the full range of benefits without the potential drawbacks.

Other safe ways to boost your collagen

You may not even need a collagen supplement if you provide your body with the needed precursors. In fact, some experts recommend increasing consumption of collagen building blocks rather than collagen protein itself.39 Here are a number of ways to boost your collagen level without having to resort to a supplement:

Making and consuming homemade bone broth, made from organic, pasture-raised poultry or grass fed and finished bovine bones and cartilage. Chicken feet are excellent for this, as chicken claws are particularly rich in collagen40
Red light therapy, aka low-level laser light therapy or photobiomodulation, has been shown to increase collagen growth to reduce wrinkles and improve skin elasticity41
Ginseng, which has antioxidant and anti-inflammatory properties, has been found to increase collagen in the bloodstream and may have antiaging benefits42
Aloe vera, taken orally as an aloe vera gel powder, nearly doubled collagen production and increased hyaluronic acid levels by 1.5 times in one study,43 significantly reducing wrinkles in women aged 40 and over
Hyaluronic acid, an important compound for collagen in the skin, can be found in bone broth, organ meats and root vegetables,44 or taken as a supplement. Hyaluronic acid has been shown to improve skin moisture and suppleness and reduce wrinkles when added to the diet.45,46
Vitamin C, for example, plays an important role in collagen synthesis,47 so, without vitamin C, your body’s natural collagen production will be impacted. Fruits and vegetables rich in vitamin C include kiwi, oranges and other citrus fruits, tomatoes, bell peppers and broccoli
Antioxidants, which protect against damaging free radicals, enhance the effectiveness of existing collagen. Berries such as blueberries, blackberries and raspberries are good sources
Garlic contains sulfur, a necessary component for collagen production,48 as well as lipoic acid, which helps rebuild damaged collagen fibers49
– Sources and References