Collagen calories
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Collagen Calories: Insights from Recent Research
Low-Calorie Content of Collagen-Rich Foods
Nutritional Composition of Edible Jellyfish
Edible jellyfish, a significant source of collagen, have been studied for their nutritional composition and calorific value. Research indicates that these jellyfish species possess low calorific values, ranging from 1.0 to 4.9 kcal/g dry weight (D.W.)2. This low calorie content, combined with negligible fat levels (0.4-1.8 g/100 g D.W.), makes jellyfish a low-calorie food option rich in protein and minerals. The protein content in these jellyfish ranges from 20.0 to 53.9 g/100 g D.W., with collagen accounting for a substantial portion of this protein2.
Collagen Content and Its Nutritional Benefits
The total collagen content in edible jellyfish varies significantly, from 122.64 to 693.92 mg/g D.W., which constitutes about half of the total protein content2. This high collagen content, along with the presence of essential amino acids such as glycine, glutamate, threonine, proline, aspartate, and arginine, underscores the nutritional value of jellyfish. Additionally, the major elements found in these jellyfish include sodium, potassium, chlorine, magnesium, sulfur, zinc, and silicon, further enhancing their nutraceutical potential2.
Impact of Collagen on Obesity and Inflammation
Anti-Obesity Effects of Low-Molecular-Mass Collagen Fragments
A study on the effects of low-molecular-mass collagen fragments derived from Antarctic wild marine fish scales on obese rats provides compelling evidence of collagen's potential benefits in weight management. Rats on a high-calorie diet supplemented with these collagen fragments showed a decreased rate of mass gain and reduced relative mass of both visceral and subcutaneous adipose tissues1. This suggests that collagen supplementation can mitigate some of the adverse effects of a high-calorie diet.
Reduction of Inflammation and Improvement in Adipose Tissue Morphology
The same study also highlighted the anti-inflammatory properties of collagen. Treatment with low-molecular-mass collagen fragments led to a reduction in immune cell infiltration, a decrease in the number of mast cells, and their redistribution back to the septa. Additionally, there was a notable decrease in the number of crown-like structures formed by immune cells, which are markers of chronic inflammation associated with obesity1. These findings suggest that collagen not only aids in weight management but also improves inflammatory and morphological parameters in adipose tissues.
Conclusion
Collagen-rich foods, such as edible jellyfish, offer a low-calorie, high-protein option with significant nutritional benefits. The high collagen content in these foods contributes to their potential as functional foods and nutraceuticals. Furthermore, low-molecular-mass collagen fragments have shown promising results in reducing obesity-related mass gain and inflammation, making them a potential therapeutic option for managing obesity and its comorbidities.
Sources and full results
Most relevant research papers on this topic
Low-Molecular-Mass Fragments of Collagen Improve Parameters Related to Mass and Inflammation of the Adipose Tissue in the Obese Rat
Low-molecular-mass collagen fragments from Antarctic wild marine fish scales can reduce body mass and improve adipose tissue morphology and inflammation in obese rats.
RCT
Animal StudyNutritional composition and total collagen content of three commercially important edible jellyfish.
Edible jellyfish species (Acromitus hardenbergi, Rhopilema hispidum, and Rhopilema esculentum) are a promising source of nutritive ingredients for oral formulations, nutricosmetics, and functional food due to their low calorific values and high protein content
Highly CitedA collagen hydrolysate/milk protein-blend stimulates muscle anabolism equivalently to an isoenergetic milk protein-blend containing a greater quantity of essential amino acids in older men
A collagen hydrolysate/milk protein-blend stimulates muscle anabolism equivalently to an isoenergetic milk protein-blend containing a greater quantity of essential amino acids in older men.
RCT
Very Rigorous JournalProline precursors to sustain Mammalian collagen synthesis.
Arginine and ornithine supplementation effectively increases collagen deposition in wounds, but whether this is accomplished by conversion to proline is uncertain.
Highly CitedPlasma concentration of amino acids in obese men consuming very-low-calorie diets composed of soy or collagen protein.
Soy protein diets maintain essential amino acid levels better than collagen protein diets during very-low-calorie dieting in obese men.
Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis.
Adding gelatin to an intermittent exercise program improves collagen synthesis, potentially aiding in injury prevention and tissue repair.
RCTVery Rigorous JournalHighly CitedCaloric restriction decreases age-dependent accumulation of the glycoxidation products, N epsilon-(carboxymethyl)lysine and pentosidine, in rat skin collagen.
Caloric restriction reduces glycation of blood and tissue proteins and age-related accumulation of glycoxidation products in skin collagen, potentially extending life span in rodents.
Non-RCTAnimal StudyHighly CitedEffects of 12 Weeks of Hypertrophy Resistance Exercise Training Combined with Collagen Peptide Supplementation on the Skeletal Muscle Proteome in Recreationally Active Men
Combining resistance exercise training with collagen peptide supplementation leads to a more pronounced increase in muscle mass, fat-free mass, and strength than training alone.
RCTVery Rigorous JournalCollagen in Health and Disease
Collagen plays a crucial role in maintaining health and preventing disorders like osteogenesis imperfecta, Ehlers-Dalnos syndrome, and scurvy.
Highly CitedAnti-obesity effect of collagen peptides obtained from Diplulmaris antarctica, a jellyfish of the Antarctic region
Collagen peptides from Diplulmaris antarctica jellyfish can prevent obesity in rats by reducing body weight gain, BMI, and oxidative stress markers.
Non-RCTAnimal Study