L-carnitine--metabolic functions and meaning in humans life.
Pekala J, Patkowska-Sokoła B, Bodkowski R. Current drug metabolism, 2011.Review of how the body makes L-carnitine from lysine and methionine, and which foods supply it.
PubMed 21561431 →
Sixth on the label
L-Carnitine
L-carnitine is the sixth of nine ingredients on the Joe's Blend box, printed as 'L-Carnitine (Carnitine)'. The body also makes it, from the amino acids lysine and methionine. Joe's Blend makes no weight-loss or slimming claim for it.
Updated 29 September 2026. Checked against the printed box and Eurofins report AR-25-E9-005753-01.
Ingredient 6 of 9Also made by the bodyNo slimming claim
Sources for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Pekala and colleagues, Current drug metabolism, 2011, PMID 21561431.
In every 21 g sachetOn the box: ingredient 6 of 9, heaviest first
1Organic raw cane sugar (saccharum officinarum)2Non-dairy creamer (Glucose syrup solids, vegetable palm oil, emulsifier, silicon dioxide)3Vanilla flavor (Vanilla planifolia)4Arabica instant coffee (Coffea arabica seed extract)5Soybean seed extract (Glycine soja extract)6L-Carnitine (Carnitine)7L-Theanine (Y-Glutamylethylamide)8Glutathione (L-Glutathione)9Silicon dioxide (Silica)
What is L-carnitine?
L-carnitine is a molecule the body makes, built from the amino acids lysine and methionine. In the body's own cells it carries fatty acid chains into the mitochondria; that describes the body's own L-carnitine, not anything a sachet does.
Adults hold around 20 g of it. The body does not break it down but clears it through the kidneys, so what is lost is replaced by the body's own synthesis or by food. At normal levels the kidneys reabsorb 90 to 99 percent of the carnitine they filter.
Sources for this section: Pekala and colleagues, Current drug metabolism, 2011, PMID 21561431; Rigault and colleagues, Meat science, 2008, PMID 22062286; Rebouche, Annals of the New York Academy of Sciences, 2004, PMID 15591001.
Has L-carnitine absorption been studied?
Yes, from food and from supplements. A 2004 review covers how L-carnitine from both is absorbed and how the kidneys clear it. No published study has measured it from this coffee: a PubMed search for 'Joe's Blend' on 30 September 2026 returned no papers, the box prints no amount, and the lab report we hold covers nutrition only.
Sources for this section: Rebouche, Annals of the New York Academy of Sciences, 2004, PMID 15591001; the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Eurofins nutrient report AR-25-E9-005753-01.
Which foods contain L-carnitine?
Red meats such as beef and lamb are the richest food sources, and fish, poultry and milk also supply it. In a lab study of cooked and frozen meat and fish, salmon held about 12 times less L-carnitine than beef, and freezing or cooking did not change the L-carnitine content of beef.
Those two routes, the body's own supply and food, are the ones the studies describe. The L-carnitine in a coffee mix is an added ingredient, and the Joe's Blend box prints no amount for it.
Sources for this section: Pekala and colleagues, Current drug metabolism, 2011, PMID 21561431; Rigault and colleagues, Meat science, 2008, PMID 22062286; the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7.
What is L-carnitine coffee, and what is in this one?
L-carnitine coffee is a coffee mix with L-carnitine added. In Joe's Blend it is sixth of nine ingredients, so by the label's order, which lists ingredients heaviest first, a sachet holds less L-carnitine than soybean seed extract and more than L-theanine, glutathione or the silicon dioxide added on its own, ninth on the list. That is an inference from the order, not a measurement: the box prints no milligram figure, and the Eurofins report covers nutrition only.
Joe's Blend is sold as a 3-in-1 coffee. It makes no weight, slimming, fat-burning or exercise claim for L-carnitine or for the drink.
Sources for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Codex Alimentarius labelling standard CODEX STAN 1-1985, FAO and WHO; Eurofins nutrient report AR-25-E9-005753-01.
FAQ
L-carnitine questions, answered from the research
What is L-carnitine?
A molecule the body makes from lysine and methionine. Red meat, fish, poultry and milk also supply it.
Which foods have L-carnitine?
Red meats such as beef and lamb are the richest sources; fish, poultry and milk also contain it. Salmon had about 12 times less than beef in one lab study.
Is Joe's Blend a slimming coffee?
No. Joe's Blend is sold as a 3-in-1 coffee and makes no weight, slimming or fat-burning claim for L-carnitine or for the drink.
How much L-carnitine is in a sachet?
The box does not print it. L-carnitine is sixth of nine ingredients, after the soybean seed extract and before L-theanine.
Does the body make its own L-carnitine?
Yes. It is made from the amino acids lysine and methionine, and adults hold around 20 g of it.
The research
What does the research on L-carnitine cover?
Two reviews and one food study, each summarised by what it measured.
Kinetics, pharmacokinetics, and regulation of L-carnitine and acetyl-L-carnitine metabolism.
Rebouche CJ. Annals of the New York Academy of Sciences, 2004.Review of how L-carnitine is absorbed, distributed and cleared: absorption from food versus supplements, whole-body turnover time, and reabsorption by the kidneys.
PubMed 15591001 →Changes in l-carnitine content of fish and meat during domestic cooking.
Rigault C, Mazué F, Bernard A. Meat science, 2008.Measured L-carnitine in beef and fish before and after freezing and different cooking methods. Beef was rich in it, salmon held about 12 times less, and cooking or freezing did not change beef's content.
PubMed 22062286 →Education, not advice. Joe's Blend is coffee, not medicine, and carries no approved therapeutic claims. If you have a condition or take medication, talk to your doctor before adding anything new to your day.
Sources for this section: Pekala and colleagues, Current drug metabolism, 2011, PMID 21561431; Rebouche, Annals of the New York Academy of Sciences, 2004, PMID 15591001; Rigault and colleagues, Meat science, 2008, PMID 22062286.
Sources
- Joe's Blend Coffee box: printed ingredient list, directions and storage line, batches 140525JCA3 and 140525JCA7 (manufactured 14 May 2025, expiry 14 May 2027). Read from photographs of two boxes, 16 September 2026. The list is reproduced on our facts page. joesblend.com/facts
- Pekala J, Patkowska-Sokoła B, Bodkowski R. L-carnitine--metabolic functions and meaning in humans life. Current drug metabolism, 2011. PMID 21561431
- Rigault C, Mazué F, Bernard A. Changes in l-carnitine content of fish and meat during domestic cooking. Meat science, 2008. PMID 22062286
- Rebouche CJ. Kinetics, pharmacokinetics, and regulation of L-carnitine and acetyl-L-carnitine metabolism. Annals of the New York Academy of Sciences, 2004. PMID 15591001
- Eurofins Analytical and Assurance Services Philippines, Quezon City: nutrient report AR-25-E9-005753-01 (964-2025-00005149) for Joe's Blend Coffee, results per 100 g and per 21 g serving, actual and rounded. The rounded values are on our facts page. joesblend.com/facts
- Codex Alimentarius: General Standard for the Labelling of Prepackaged Foods, CODEX STAN 1-1985 (Rev. 1-1991), sections 4.2.1.2 to 4.2.1.4, the text hosted by FAO. FAO and WHO. Read 30 September 2026. fao.org
Try it in the cup
One box. Ten mornings.
Arabica with L-theanine, L-glutathione and L-carnitine, in a 21 g sachet. Hot or iced, 30 seconds.
₱54910 sachets · ₱54.90 a cup · shipping included
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