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6 differences between marine and bovine collagen

Dr en Pharmacie

To improve your skin and joints, you want to start a collagen regimen. But which one should you choose: marine or bovine?

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marine or bovine collagen
✓ WHO ARE WE?
An editorial team specializing in nutrition. Authors of the book Beneficial Foods (Mango Editions) and the podcast Food Revolutions.

Before being the dietary supplement we’re discussing here, collagen is a protein found in our bones, muscles, tendons, joints, skin, blood vessels… Most of our tissues contain it, as summarized in this study.

Il apporte résistance et structure à ces mêmes tissus, un peu les fondations d’une maison bien construite. Il renforce les os, facilite le glissement des articulations les unes sur les autres, rend la peau lisse, etc. 

As the body’s production of it decreases with age, we have seen in recent years the rise of many collagen supplement brands, especially powdered forms. And this powder is still animal-derived: either from fish or from cows.

So, marine or bovine collagen? I explain here their differences so you can choose between the two.

Lire aussi | Les meilleurs collagènes marins selon une pharmacienne

1. Origin and ethical considerations

Le collagène marin est récupéré dans les écailles et les peaux des poissons. Ce sont donc des sous-produits de l’industrie de la pêche, qu’elle soit sauvage ou d’élevage. 

Le collagène bovin, lui, est récupéré dans les peaux, les tendons et les os des vaches

Whatever its origin, an ethical question arises: is fishing sustainable? Are the living conditions in farming good? Are cattle raised in industrial conditions or outdoors?

Ces questions environnementales peuvent impacter le choix du complément. Pour apaiser votre conscience, je vous conseille de vous tourner vers un collagène breveté, comme le collagène Peptan® ou Naticol®, qui assure des garanties de conditions des animaux. 

Additionally, a patented collagen normally ensures a lower presence of contaminants

2. La composition moléculaire 

marine or bovine collagen
Marine and bovine collagen: a slight difference in molecular composition

De manière générale, on dit que les collagènes marins et bovins contiennent tous les deux du collagène de type I et III. Le premier est surtout retrouvé dans la peau, alors que le second est le collagène préférentiel des muscles et vaisseaux sanguins. 

Their composition is therefore similar, although marine collagen contains a higher proportion of type I collagen. 

At the molecular level, there are some differences in amino acids from one collagen to another.

D’après mes recherches, le collagène bovin serait plus riche en hydroxyproline, même si la composition exacte du collagène varie selon sa localisation dans le corps. 

3. La biodisponibilité 

Aside from beliefs and allergies, if there is one criterion to keep in mind, it is the bioavailability

It is the body’s ability to absorb and effectively use ingested collagen. In other words, it is the amount of collagen that is actually available to the body after digestion.

Elle varie en fonction de la composition moléculaire, du poids moléculaire (la taille) du produit, et du mode d’administration. 

The scientific majority of studies show greater bioavailability of marine collagen.

4. Taste

which is the better collagen, marine or bovine?
Marine and bovine collagen are normally odorless and tasteless

Marine and bovine collagens do not taste like fish or beef steak. But don’t underestimate the psychological factor: you may perceive a difference in taste.

Qu’il soit en gélule ou sous forme de poudre, le complément alimentaire perd normalement l’intégralité de son odeur caractéristique

5. Le prix 

Looking at the prices charged by different brands, I must conclude: marine collagen is generally more expensive.

The reasons? Marine collagen extraction processes are considered to be more complex, and bioavailability is reputed to be better. 

6. Benefits

The difference in composition between these two collagens can influence their use, even if the benefits are relatively similar.

Studies have notably shown positive effects of marine collagen in improving the appearance of the skin, which is rich in type I collagen. This is less the case for bovine collagen.