Fish Maw Nutritional Profile & Collagen Content: Scientific Evidence
Scientific examination of fish maw biochemistry: Type I marine collagen, 84% crude protein, low lipids (<0.2%), bioactive peptides, and essential amino acids.
Macronutrient breakdown: High protein, virtually zero fat
Proximate lab analysis shows dried export fish maw consists of 84.2%–88.6% crude protein by dry weight, with moisture controlled at ≤12%, ash content at 0.8%–1.2%, and total fat below 0.2%. It is one of the leanest pure protein sources in the marine world.
Type I marine collagen and amino acid profile
Over 80% of fish maw protein is pure Type I marine collagen, rich in glycine, proline, and hydroxyproline. These amino acids form the fundamental building blocks of human dermal collagen, cartilage synthesis, and joint lubrication.
Bioactive peptides and cellular bioavailability
When simmered in broths or enzymatically hydrolyzed, fish maw collagen breaks down into low-molecular-weight marine peptides (under 3,000 Daltons). Studies demonstrate these peptides exhibit superior bioavailability and natural antioxidant activity compared to bovine or porcine collagen.
Micronutrients: Calcium, iron, selenium, and trace elements
Unbleached fish maw contains essential minerals including calcium (50–90 mg/100g), iron (2.5–4.1 mg/100g), zinc (1.8–3.2 mg/100g), and trace selenium (0.15–0.30 ppm). These trace elements support cellular metabolic enzyme functions and skin hydration.