2024-02-24 16:45:30
Beauty has always been a health care item that people attach great importance to. Collagen is the most common among all beauty and health foods. However, many people still know little regarding collagen. What is collagen? What are the sources, functions and selection principles of collagen? Let the nutritionist from the Good Food Course give you a quick analysis!
Analysis 1⟫What is collagen? structure?
Collagen is the name of a protein structure. Its main structure is composed of the amino acid sequence of Gly-XY, where Gly is Glycine, X is Hydroxylysine, and Y is hydroxyproline. The protein sequence of Gly-XY is then spirally wound into a braid in three forms, and the amino acids are cross-linked to form a network structure, which serves as the “connective tissue” that supports the human body.
Organize⟫Collagen classification
Collagen can be divided into five types, the most common of which are types 1, 2, and 3.
- Type 1 collagen: Found in skin, bones, blood vessels and other tissues, it is the most important supporting structure and the most common collagen structure.
- Type II collagen: found in cartilage and a source of joint health food
- Type III collagen: found in skin, blood vessels, and organs
- Type IV collagen: found in the basement membrane of tissues
- Type V collagen: found in blood vessel walls, lungs, skeletal muscles, and joint synovium
Analysis 2⟫What are the sources of collagen?
Collagen is unique to animals, so it only exists in animals. The human body can also synthesize it by itself through the action of amino acids and vitamin C.
At present, most of the collagen used in health foods is extracted from pig skin and fish scales, and then hydrolyzed by enzymes into small molecular collagen. Some health food raw materials further purify the collagen to increase the effective concentration of dipeptide molecules and make the collagen Health foods are more effective.
However, products on the market that claim to be plant-based collagen actually do not contain any collagen because collagen is of animal origin. The thick gum is water-soluble dietary fiber.
Analysis 3⟫How to digest and absorb collagen?
Collagen, like general proteins, will be decomposed by protein enzymes in the digestive tract, but the main way the human body absorbs protein is amino acids, dipeptides (two amino acids), and tripeptides (three amino acids).
However, the collagen in food has a large structure and is difficult to digest into effective dipeptides and tripeptide fragments. Its content is also far lower than the effective dose studied, so eating collagen from pig feet and chicken feet is ineffective.
Collagen for health care, following processing, its fragments can be absorbed
However, research has found that when experimental animals ingest pre-hydrolyzed collagen, signals of these collagen fragments can be detected in the skin, joints and bones, indicating that these collagens can enter the body and even target tissues.
Analyze the efficacy and mechanism of four⟫collagen?
The efficiency of the human body in synthesizing collagen will decrease as the human body ages, and it will also disintegrate due to free radicals in the body, sun exposure, and dietary problems. The loss of collagen will lead to a decrease in skin support, poor water retention, and fine lines. , loose phenomenon. Therefore, many people choose to supplement collagen to help with beauty.
Research has found that the special dipeptide components in collagen: proline-hydroxyproline (Pro-Hyp, PO) and Hydroxyproline-Glycine (Hyp-Gly, GO), can stimulate many mechanisms related to skin physiology, such as stimulating the skin to produce collagen. , some studies have also found that it can promote the effectiveness of hyaluronic acid synthesis enzyme, so it has the following effects:
- Help wound repair
- Improve skin moisture retention
- Reduce skin looseness
- Reduce skin wrinkles and fine lines
- Improve sunburn problem
- Stimulate collagen content
Note: The above collagen for cosmetic use is different from the second type of non-denatured collagen for joints.
📎Recommended reading:Nutritionist explains⟫Is eating collagen effective? Take a look at the three major beauty effects and mechanisms at once!
Analysis of Five⟫How to Choose Collagen?
There are currently many collagen health foods, ranging from powder, tablets to collagen drinks. It is recommended not only to choose small molecule collagen that is hydrolyzed and digested, but also if it is further advertised as dipeptide, tripeptide or Pro-Hyp ( PO) collagen products, and you can search for their raw material patents to see if there are any relevant studies or professional reports, so that you can choose the best products.
📎Recommended reading:Nutritionist’s analysis⟫Do pig’s feet and fungus contain collagen? This is the recommended choice!
Analysis 6⟫When should you take collagen?
In fact, there is currently no research indicating when is the best time to eat collagen, so just eat it steadily. In addition to swallowing the tablet directly, if it is powdered collagen, it can also be directly dissolved in coffee or milk tea, which can cover up the specific taste of collagen and make people more willing to supplement.
📎Recommended reading:Nutritionist explains⟫How to eat collagen? Can it be paired with coffee or milk tea? 7 common QA!
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