Di & Tripeptides… How Protein Is Best Digested & Absorbed

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To those of you that don’t know, we don’t absorb 'protein' per se because it is too large a molecule, we absorb the small sub- units of protein called amino acids which can then be used by the body and not simply passed out down the toilet. In order to break protein down we have to masticate (chew), semi- digest with saliva, and fully digest in the stomach and gastrointestinal tract. The body secretes a substance called pepsinogen, this is sent to the stomach and enters an acidic environment where it is then converted to the protein digesting enzyme pepsin. This is great, but not all of the protein we consume is metaboliseable, which means we don’t absorb it all. Ideally the protein supplement you consume will contain partially digested protein so that you have a ready- made source of dipeptides and tripeptides, the absorbable form of protein, which can then enter the cells in the body, and finally into the blood flow as amino acids.

An example of a few brands who aim to include the readily absorbed di and tripeptides into their protein are Reflex Nutrition and PhD Nutrition, this increases the products validity and efficacy. These are great sources of protein but they do come in a little more expensive (albeit still one of the cheapest you’ll find for what they are).

About the Author

Job Role Qualified Dietitian and Sports Nutritionist Qualifications BSc (Hons) Sports Science | BSc (Hons) Dietetics Tom has always participated in sport both recreationally and competitively which led to an unquenchable thirst for information on anything health, nutrition and fitness. After leaving school Tom went on to play for a football academy during which time he studied Sport and Exercise Science. From here he went on to study a BSc (Hons) Sport Science at UEA followed by his second BSc (Hons) degree, this time at the University of Hertfordshire studying Dietetics. Tom has worked in the fitness, educational and clinical nutrition industry starting out at David Lloyd Health and Leisure Clubs. He then went on to work as a Dietitian (RD) in the NHS, during which time he conducted clinics for healthy eating, weight loss and weight gain, as well as specialised consultations on Diabetes, IBS and Coeliac disease to name a few. He has vast amounts of experience at devising diet plans and supplement regimens, as well as working in the community with schools and competitive athletes. As Head Nutritionist and Supplement expert at Discount Supplements Tom is here to provide current and evidence based health and nutrition information to help you reach your health and fitness goals!
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