{"id":19643,"date":"2025-07-08T15:20:00","date_gmt":"2025-07-08T19:20:00","guid":{"rendered":"https:\/\/foodmedcenter.org\/?p=19643"},"modified":"2025-07-08T15:21:30","modified_gmt":"2025-07-08T19:21:30","slug":"the-fresh-versus-powdered-bioavailability-debate-turmeric-ginger-and-garlic","status":"publish","type":"post","link":"https:\/\/foodmedcenter.org\/zh_hk\/the-fresh-versus-powdered-bioavailability-debate-turmeric-ginger-and-garlic\/","title":{"rendered":"The Fresh Versus Powdered Bioavailability Debate: Turmeric, Ginger and Garlic\u00a0"},"content":{"rendered":"

“Let food be thy medicine and medicine be thy food”<\/em> -Hippocrates <\/strong><\/p>\n\n\n\n

Examining the role processed foods play in adverse health outcomes is not new. In 2020, with the publication of  several papers reinforcing the link, including a systematic review of epidemiological studies that appeared in Nutrition Journal<\/em>, concern began to spread to the mainstream. This “fresh is best” way of thinking may turn people away from using dried ginger, turmeric, and garlic because  they have come to believe that fresh is the “only way to go.”  <\/p>\n\n\n\n

Powdered forms are the easiest and cheapest ways to purchase, store and use these foods as medicine, but at what cost? Could they be a more effective and convenient way to reinforce our diets? <\/p>\n\n\n\n

Unlocking the Benefit: Is Bioavailability the Key?<\/strong> <\/p>\n\n\n\n

What is the role of bioavailability? Is it critical to determining the effectiveness, safety, and health impact of drugs and nutrients? Will enhancing bioavailability improve therapeutic outcomes? What are the health benefits, and how efficient are various medical and nutritional interventions? <\/p>\n\n\n\n

Bioavailability is key to the efficiency with which the beneficial ingredients of foods and medical treatment are made available to humans. So how does this translate into using garlic, ginger, and turmeric as medicine, and how does choosing the powdered form affect our ability to access the good stuff? <\/p>\n\n\n\n

Ginger, Turmeric, and Bioavailability<\/strong> <\/p>\n\n\n\n

While the highest bioavailability of theraputic elements occurs in the horizontal underground stems of fresh turmeric and ginger (called rhizomes), the bioavailability of theraputic elements for humans is higher in powdered rhizomes. Additionally, studies show higher total phenolic compounds, which protect the health of the plant, and more potent antioxidant activity in powdered, not fresh, rhizomes. <\/p>\n\n\n\n

The significant health-related components of dried ginger are diarylheptanoids, which were found to be present only in very low concentrations in fresh ginger. They are known to be the ingredient that gives ginger (and its related rhizome, turmeric) its beneficial potential for anti-inflammatory, anti-cancer, cytotoxic, immunomodulatory, antibacterial, anti-asthmatic properties as well as its ability to promote the proliferation muscle cells. Chemical analysis of dried versus fresh ginger concludes that the percentage of volatile components in fresh ginger depends on the conditions in which it was grown. Dried ginger contained 15 diarylheptanoids in addition to fresh ginger’s composition.  <\/p>\n\n\n\n

In turmeric, not only was the dried rhizome found to generate higher peak concentration in the blood than fresh, but isolated curcumin\u2014a component of turmeric known to have antibacterial, anti-inflammatory, hypoglycemic, antioxidant, wound-healing, and antimicrobial properties\u2014was shown to  produce the lowest health-promoting results. This finding is significant in light of the proliferation of isolated curcumin products, which are marketed as a superior way to gain the medicinal benefits of turmeric. <\/p>\n\n\n\n

It’s clear that using the convenient and economical powdered turmeric and ginger is the way to maximum bioavailability. Not only do human utilize them more efficiently but they are also far more convenient and easier to measure and store.  <\/p>\n\n\n\n

There are other factors. The overall structure of the food and how the herbs are combined can affect its overall efficacy. Powdered turmeric and ginger in meals consistently show more benefit than isolated supplements. For example, curcumin bioavailability was up to 44 times higher in meals containing the equivalent Turmeric than in curcumin powder.  <\/p>\n\n\n\n

What About Garlic?<\/strong> <\/p>\n\n\n\n

Garlic contains high levels of phosphorus, zinc, potassium, sulphur, and, most importantly, sulphur-containing compounds, of which Allicin receives the most attention for its therapeutic properties. <\/p>\n\n\n\n

Allicin Wonderland – Garlic and Bioavailability<\/strong> <\/p>\n\n\n\n

Allicin is widely believed to lower elevated lipid (fat) levels in the blood and is credited with other health benefits as well. Garlic has been consumed by humans for at least 5000 years , and in modern times It has been shown in many studies to have properties that help to prevent against cancer, cardio and metabolic disorders, high blood pressure , skin diseases, bone diseases, and diabetes. Its antioxidant, anti-inflammatory, and lipid-lowering properties are now widely accepted, so the question is whether  the powdered form produce the same health benefits as fresh?  <\/p>\n\n\n\n

 In Supplement Form<\/strong><\/p>\n\n\n\n

Studies reveal that dried garlic retains 36 to 104 percent of its health-producing compounds, including allicin, when consumed in the form of enteric capsules. Non-enteric (uncoated) tablets have produced better results.  <\/p>\n\n\n\n

As a Food<\/strong> <\/p>\n\n\n\n

Garlic is generally used to enhance the flavor of another food, often a protein. But protein slows down the absorption of garlic’s benefits in any form because it is slow to leave the stomach (which is why eaig protein keeps you feeling full longer). And this effect is particularly prominent in women. <\/p>\n\n\n\n

The bioavailability of the beneficial components of garlic is reduced when its cooked or processed for cooking, and studies show that the loss rates are considerable; boiled (84 percent), roasted (70 percent), pickled (81 percent) and minced with an acid such as lemon (34 percent) compared to raw, fresh garlic. <\/p>\n\n\n\n

However, crushing garlic has been shown to minimise this loss if the garlic is cooked for less than 3 minutes, and Increasing the amount used can compensate for this loss. On the other hand, the degree of loss may be compounded by using a microwave as well as by extreme and prolonged heating, especially more than six minutes. It follows, therefore, that stir-frying garlic or adding it towards the end of cooking is the best way to preserve maximum benefits. <\/p>\n\n\n\n

Smell? What Smell?\u00a0<\/strong>\u00a0<\/p>\n\n\n\n

Because allicin is a sulphur-based compound, t\u2019s not surprising thatwe (and others in our vicinity) notice garlic odors on our breath and from our pores. <\/p>\n\n\n\n

Cooking is the most common and effective way to combat these effects, but, as we\u2019ve said, that also negates most of its benefits. Consuming garlic tablets may also affect our breath and pores. <\/p>\n\n\n\n

Mercaptan, a naturally occurring sulphur compound known to reduce the odor of garlic, is found in foods including citrus (especially grapefruit), radishes, onions, asparagus, and some rare nuts and cheeses. However, these options may not fit into many recipes, and using trial and error to see how your body reacts is also recommended. <\/p>\n\n\n\n

Conclusion<\/strong> <\/p>\n\n\n\n

Garlic, turmeric, and ginger are formidable foods that benefit our health in established and emerging ways. Research has clearly shown that consuming powdered turmeric and ginger is not only more convenient and economical but also a more effective way to enjoy their benefits. In the case of garlic, chopped fresh and eaten as raw as possible is best. Tablets, especially uncoated, are effective but yield their own odor consequence.  To counteract that effect. Try some of the countermeasures suggested above.<\/strong> <\/p>\n\n\n\n

Peer Reviewed Articles<\/strong>\u00a0<\/p>\n\n\n\n

Ginger and Turmeric<\/strong> <\/p>\n\n\n\n

Consumption of ultra-processed foods and health outcomes: a systematic review of epidemiological studies<\/a>. \u202f(Nutrition Journal – August, 2020) <\/p>\n\n\n\n

The Bioavailability of Drugs \u201dThe Current State of Knowledge<\/a>\u201d \u202f(Molecules \u2013 2023)  <\/p>\n\n\n\n

The Chemical Signatures of Water Extract of Zingiber officinale Rosc<\/a>.\u202f(Molecules \u2013 Nov, 2022) <\/p>\n\n\n\n

In vitro biological evaluation and silico studies of linear diarylheptanoids from Curcuma aromatic Salisb. as urease inhibitors<\/a>\u00a0 (RSC Medicinal Chemistry \u2013 2024)\u00a0<\/p>\n\n\n\n

Structural differences in diarylheptanoids analogues from Alnus viridis and Alnus glutinosa influence their activity and selectivity towards cancer cells<\/a>\u00a0 (Chemico-Biological Interactions \u2013 April, 2016)\u00a0<\/p>\n\n\n\n

Diarylheptanoids from Alnus nepalensis attenuate LPS-induced inflammation in macrophages and endotoxic shock in mice<\/a>.\u202f(International Immunopharmacology \u2013 Jan, 2016) .\u00a0<\/p>\n\n\n\n

Tackling multiple antibiotic resistance in enteropathogenic Escherichia coli (EPEC) clinical isolates: a diarylheptanoid from Alpinia officinarum shows promising antibacterial and immunomodulatory activity against EPEC and its lipopolysaccharide-induced inflammation<\/a> (International Journal of Antimicrobial Agents \u2013 March, 2009)\u00a0<\/p>\n\n\n\n

Discovery of diarylheptanoids that activate \u00ce\u00b17 nAchR-JAK2-STAT3 signalling in macrophages with anti-inflammatory activity in vitro and in vivo<\/a> (Bioorganic & Medicinal Chemistry – May, 2022)\u00a0<\/p>\n\n\n\n

Discovery of \u00ce\u00b22- adrenoceptor agonists in Curcuma zedoaria Rosc using label-free cell phenotypic assay combined with two-dimensional liquid chromatography<\/a>\u00a0 (Journal of Chromatography \u2013 Nov, 2018)\u00a0<\/p>\n\n\n\n

Diarylheptanoids\/sorafenib as a potential anti-cancer combination against hepatocellular carcinoma: the p53\/MMP9 axis of action<\/a>.\u202f(Naunyn-Schmiedeberg’s Archives of Pharmacology \u2013 May, 2023) <\/p>\n\n\n\n

Natural diarylheptanoid compounds from Curcuma comosa Roxb. promote differentiation of mouse myoblasts C2C12 cells selectively via ER alpha receptors<\/a>. \u202f(Medicinal Chemistry Research \u2013 Nov, 2016) <\/p>\n\n\n\n

Diarylheptanoids suppress the expression of leukocyte adhesion molecules on human vascular endothelial cells<\/a>. (European Journal of Pharmacology \u2013 Sept, 2000)\u00a0<\/p>\n\n\n\n

Extraction of selected health substances from\u202fCurcuma longa\u202fand\u202fZingiber officinale in artificial digestive juices<\/a>. (Journal of Science, Food and Agriculture \u2013 Oct, 2021) <\/p>\n\n\n\n

Bioavailability and bioaccessibility of food bioactive compounds; overview and assessment by in vitro methods<\/a>.\u202f(Comprehensive Reviews in Food Science and Food Safety \u2013 Aug, 2020)\u00a0<\/p>\n\n\n\n

Food matrix and co-presence of turmeric compounds influence the bioavailability of curcumin in healthy humans<\/a> (Food & Function \u2013 2018) <\/p>\n\n\n\n

Comparison of total phenolic contents and antioxidant activities of turmeric leaf, pandan leaf and torch ginger flower<\/a>. \u202f(International Food Research Journal \u2013 Jan, 2010)\u00a0\u00a0<\/p>\n\n\n\n

Garlic <\/strong><\/p>\n\n\n\n

Health benefits of Allicin and other compounds present in Garlic (A Review)<\/a>\u202f(International Journal of Scientific Research \u2013 May, 2015)\u00a0<\/p>\n\n\n\n

Allicin Bioavailability and Bioequivalence from Garlic Supplements and Garlic Foods.<\/a>\u202f(Nutrients \u2013 <\/em>June, 2018) <\/p>\n\n\n\n

Composition, stability, and bioavailability of garlic products used in a clinical trial<\/a>\u202f(Journal of Agricultural and Food Chemistry \u2013 July, 2005)\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n

Potential Health Benefit of Garlic Based on Human Intervention Studies: A Brief Overview<\/a>.\u202f(Antioxidants \u2013 July, 2020) <\/p>\n\n\n\n

Bioaccessibility and permeability of bioactive compounds in raw and cooked garlic.<\/a>\u202f(Journal of Food Composition and Analysis \u2013 July, 2020) <\/p>\n\n\n\n

Cooked garlic and antioxidant activity: Correlation with organosulfur compound composition<\/a>\u202f(Food Chemistry \u2013 April, 2017)\u00a0<\/p>\n\n\n\n

Effect of cooking on garlic (Allium sativum L.) antiplatelet activity and thiosulfinates content<\/a>\u202f(Journal of Agricultural and Food Chemistry \u2013 Jan, 2007)\u00a0<\/p>\n\n\n\n

Raw and boiled garlic enhances plasma antioxidant activity and improves plasma lipid metabolism in cholesterol-fed rats\u202f<\/a>(Life Sciences \u2013 Jan, 2006)\u00a0<\/p>\n\n\n\n

Odor Components of Human Breath After the Ingestion of Grated Raw Garlic<\/a>.\u202f(Journal of Food Science \u2013 May, 1989) <\/p>\n\n\n\n

Quantification of Allyl Methyl Sulfide, Allyl Methyl Sulfoxide, and Allyl Methyl Sulfone in Human Milk and Urine After Ingestion of Cooked and Roasted Garlic.<\/a>\u202f(Frontiers in Nutrition \u2013 Sep, 2020) <\/p>\n\n\n\n

Further Reading <\/strong><\/p>\n\n\n\n

Comparative Studies of Bioactivities and Chemical Components in Fresh and Black Garlics<\/a>\u202f(Molecules – May, 2024) <\/p>\n\n\n\n

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