骨湯中含有多少膠原蛋白？攝取量、含量變異性與生物利用度

在功能性營養與膳食補充品領域，鮮少有趨勢能像骨湯這般迎來復興。這款被譽為「液態黃金」的超級食物，同時受到原始飲食愛好者、生酮飲食者及整體健康實踐者的推崇。其核心賣點何在？正是憑藉豐富的膠原蛋白含量，展現出支持關節健康、肌膚彈性與腸道完整性的潛力。.

然而，對於業界專業人士、產品配方師及注重健康的消費者而言，多數食譜部落格仍未能解答一個關鍵問題： 骨湯中含有多少膠原蛋白, 究竟是怎麼回事？

一杯自製高湯是否等同於一匙標準化膠原蛋白粉？身為營養原料專家，我們正剝開生物化學的層層迷霧，揭示關於產量、穩定性與生物利用度的真相。.

Quick Answer: How Much Collagen Is in Bone Broth?

A cup of bone broth can contain collagen-derived gelatin, but the exact amount is highly variable. In practical terms, one cup may provide only a small amount of collagen-derived protein in a diluted commercial broth, or several grams in a concentrated homemade broth made with collagen-rich bones, skin, joints, feet, or connective tissue.

The key point is this: bone broth does not deliver a standardized collagen dose unless the manufacturer tests and declares the collagen or protein content. A cup of broth that contains 9 g of total protein is not automatically the same as 9 g of collagen peptides.

For general wellness, bone broth can be a valuable whole-food source of amino acids, minerals, flavor, and hydration. For targeted product development or clinical-style dosing, standardized hydrolyzed collagen peptides are more reliable because the serving size, molecular weight, amino acid profile, and collagen peptide content can be controlled.

Practical Per-Cup Estimate

產品類型	Typical Consumer Expectation	Formulation Reality
Diluted shelf-stable bone broth	Light protein and savory nutrition	May contain only a few grams of protein per cup; collagen content is not guaranteed unless tested.
Concentrated homemade bone broth	Gelatin-rich and collagen-rich	Can be higher in gelatin, especially when made with feet, joints, skin, and connective tissue. Still not standardized.
Bone broth powder	More concentrated and easier to label	Quality depends on raw material, drying process, protein content, sodium level, and COA testing.
水解膠原蛋白勝肽	Precise collagen peptide dose	Best option when a brand needs a consistent 2.5 g, 5 g, or 10 g collagen peptide serving.

If your goal is a comforting functional food, bone broth works well. If your goal is a measurable collagen dose, use a standardized collagen peptide ingredient.

What Counts as “Collagen” in Bone Broth?

When people ask how much collagen is in bone broth, they usually mean one of three different things:

1. Native collagen in the raw bones, skin, cartilage, and connective tissue before cooking.

2. Gelatin formed when heat denatures native collagen during simmering.

3. Collagen peptides formed when gelatin is further broken down through controlled enzymatic hydrolysis.

Bone broth mainly contains gelatin and collagen-derived amino acids, not the same low-molecular-weight hydrolyzed collagen peptides used in standardized supplement powders.

This distinction matters for supplement brands. A consumer may use the word “collagen” broadly, but a manufacturer must decide what is actually being delivered in the serving: total protein, gelatin, hydroxyproline-rich protein, bone broth solids, or hydrolyzed collagen peptides.

Collagen Form Comparison

形式	Where It Appears	Typical Property	Formulation Meaning
Native collagen	Raw skin, bone, cartilage, tendon	Large triple-helix structure	Not a practical supplement format without processing.
明膠	Cooked bone broth and cooked collagen	Gels when cooled; warm-water soluble	Gives broth its “jiggle,” but dosage and molecular size are variable.
水解膠原蛋白勝肽	Standardized collagen peptide powders	Low molecular weight; cold-water soluble	Best for precise serving sizes, beverage powders, stick packs, capsules, and gummies.

For a food blog, the “jiggle test” is useful. For a supplement brand, it is not enough. Brands need COA data, hydroxyproline testing, protein content, molecular weight distribution, and batch-to-batch consistency.

化學成分：膠原蛋白、明膠與胜肽

要理解骨湯的價值，首先必須理解膠原蛋白分子的轉化過程。.

1. 骨骼中的天然膠原蛋白： 在動物結締組織的自然狀態下，膠原蛋白呈現三螺旋結構。其強度極高且不溶於水。你無法僅靠食用骨頭就消化膠原蛋白——其分子量過高（約30萬道爾頓）。.

2. 明膠（在湯中）： When bones are simmered in water for an extended period, the heat breaks the cross-links holding the collagen helix together. This process is called denaturation. The collagen unwinds and becomes gelatin.

• 關鍵特徵： 明膠遇冷會凝固成膠狀。這正是優質骨湯中可見的「晃動感」。.
• 分子量： 明膠的分子量雖小於天然膠原蛋白，但同樣由長鏈胺基酸組成（約50,000至100,000道爾頓）。.

3. 水解膠原蛋白肽（補充劑成分）： 這是標準化原料中存在的形態。透過酶水解作用，明膠會進一步分解成稱為肽的微小胺基酸鏈。.

• 關鍵特徵： 完全可溶於冷水；不會凝膠化。.
• 分子量： 極低（通常為2,000至5,000道爾頓），以優化吸收效果。.

重點摘要： 當我們詢問「骨湯中含有多少膠原蛋白」時，實際上是在詢問「湯中含有多少明膠」。雖然兩者具有相同的胺基酸組成，但其物理特性與消化率卻有所不同。.

變數因素：為何居家生活難以保持一致性

As a raw material supplier, we value Standardization. When you buy a drum of Collagen Peptides, you know exactly what you are getting. With bone broth, four primary variables dictate the final protein yield.

1. 骨之源

並非所有骨骼都生而平等。第一型、第二型與第三型膠原蛋白的密度，會因動物種類及特定解剖部位而有所差異。.

• 牛骨： 骨髓骨肉鮮美且富含礦物質，但實際上其膠原蛋白含量較低。膠原蛋白產量最高的是「關節骨」及結締組織密集的關節部位。.
• 雞腳與雞翅： 這些是業界的秘密武器。由於它們幾乎完全由皮膚、軟骨和肌腱組成，相較於烤雞骨架，能提煉出濃度顯著更高的明膠。.
• 魚骨架： 魚膠原蛋白具有極高的生物利用度，但魚骨質地脆弱。在蛋白質分解前萃取膠原蛋白時，魚骨所需的烹煮時間遠比其他食材短暫。.

2. 烹調時間

膠原蛋白的萃取取決於時間與溫度。.

• 12小時內： 僅燉煮8小時的牛肉高湯雖能萃取出風味，卻會讓大量膠原蛋白仍鎖在緻密的骨基質中。.
• 24至48小時： 這是牛肉的「最佳烹調溫度區間」。此溫度能提供足夠熱能，使膠原蛋白完全變性轉化為明膠。.
• 壓力烹飪： 現代壓力鍋能加速此過程，三小時內完成慢燉鍋需二十四小時才能達到的效果，儘管傳統主義者對此對胺基酸組成所產生的影響仍存有爭議。.

3. 酸性介質

在食譜中，您經常會看到需要使用蘋果醋（ACV）或葡萄酒的配方。這不僅是為了增添風味。其中的酸性成分有助於溶解骨骼中的鈣質，有效地「開啟通道」使膠原蛋白得以釋放。相較於在微酸性水中烹煮，使用中性水（pH值7）烹煮骨頭所產生的蛋白質含量會顯著減少。.

4. 水與骨之比

這是最顯而易見卻常被忽略的關鍵因素。裝滿骨頭且僅以水勉強覆蓋的鍋子，能熬出濃稠的高蛋白凝膠；而僅有兩根骨頭卻倒入一加侖水的鍋子，則只會煮出稀薄的茶色湯汁。若無實驗室檢測，消費者根本無從知曉自己那碗湯裡究竟含有1克還是8克蛋白質。.

Formulator’s Test Matrix: How to Verify Collagen in a Bone Broth Ingredient

For consumers, taste and texture may be enough. For supplement brands, bone broth ingredients should be evaluated with measurable quality parameters.

Before using a bone broth powder or collagen-rich broth ingredient in a commercial formula, request and review:

• Total protein content
• Hydroxyproline content
• Amino acid profile
• Moisture content
• Sodium content
• 灰份含量
• 重金屬
• 微生物限度
• Source species and part used
• Drying method
• 溶解性和分散性
• Flavor and odor profile
• Batch-to-batch consistency
• Allergen and animal-origin documentation

Hydroxyproline is especially useful because it is strongly associated with collagen-rich material. If a supplier claims a bone broth powder is collagen-rich but cannot provide amino acid or hydroxyproline data, the ingredient should be treated as a flavor or protein ingredient rather than a precise collagen source.

胺基酸組成：隱藏的黃金

無論採用何種萃取方法，膠原蛋白的真正價值——無論是來自湯品或補充劑——皆在於其獨特的胺基酸組成。與乳清蛋白或大豆蛋白不同，膠原蛋白含有極高濃度的三種特定胺基酸：

1. 甘氨酸： 在現代高蛋白飲食中常處於缺乏狀態。它作為一種抑制性神經傳導物質，有助於促進睡眠、排毒及減輕發炎反應。.
2. 脯氨酸： 對蛋白質合成與結構至關重要，對心血管健康具有關鍵作用。.
3. 羥脯氨酸： 此種胺基酸是膠原蛋白所獨有的，對於維持人體內膠原蛋白三螺旋結構的穩定性至關重要。.

Bone broth provides these amino acids, but it also delivers Glycosaminoglycans (GAGs) like glucosamine, chondroitin sulfate, and hyaluronic acid, which are leached from the cartilage. This “full-spectrum” matrix is the primary advantage of broth over isolated peptide powders.

生物利用度：肉湯與水解肽之比較

Here is where the distinction becomes critical for manufacturers and consumers focusing on efficacy.

吸收屏障 人體消化系統必須將蛋白質分解為胺基酸或二肽/三肽，才能將其吸收進入血液循環。.

• 骨湯（明膠）： 需要大量消化作用（胃蛋白酶與胃酸）才能分解長鏈明膠。對於消化功能受損者（常見於長者或腸道問題患者），吸收效率可能較低。.
• 水解肽： 這些成分屬於「預消化」狀態。其低分子量特性使其能迅速穿過腸道屏障進入血液循環，通常在攝入後1至2小時內達到血漿濃度峰值。.

「信號」效應 Research suggests that specific collagen peptides (like Pro-Hyp and Hyp-Gly) act not just as building blocks, but as signaling molecules. They trigger fibroblasts in the skin to produce 更多 膠原蛋白。標準化原料通常經過優化處理，以確保含有高濃度特定生物活性肽。目前尚不清楚骨湯在隨機水解過程中，能否產生具有臨床意義的信號肽含量。.

Why Hydrolyzed Collagen Peptides Are Better for Label Claims

Bone broth is a variable food matrix. Hydrolyzed collagen peptides are a standardized ingredient.

That difference matters when a brand wants to make a clear front-panel claim such as “10 g collagen peptides per serving” or wants to build a product around skin, joint, beauty, mobility, or active aging positioning.

Hydrolyzed collagen peptides give formulators more control over:

• Serving size
• Protein contribution
• 分子量分佈
• Solubility in cold or hot liquids
• Taste and odor
• 粉末流
• Clinical-style dosage alignment
• Stick pack, tub, capsule, tablet, gummy, or RTD format feasibility

A bone broth concept product can still be highly attractive. The best approach is often to combine the consumer appeal of bone broth with the precision of standardized collagen peptides.

Formulator’s Note: How to Build a Standardized Bone Broth Concept Product

For supplement brands, the strongest opportunity is not choosing between bone broth and collagen peptides. It is combining the market appeal of bone broth with the precision of standardized collagen peptide ingredients.

Option 1: Traditional Bone Broth Powder

This is best for brands focused on savory nutrition, gut comfort, whole-food positioning, and culinary use. The main formulation challenges are sodium, flavor, aroma, solubility, and protein consistency.

Option 2: Hydrolyzed Collagen Peptide Powder

This is best for beauty, joint, mobility, sports recovery, and active aging products that require a clear collagen dose. It works well in stick packs, tubs, capsules, tablets, and gummies.

Option 3: Bone Broth + Collagen Peptide Hybrid

This is often the best commercial format. The bone broth component provides the story, taste, and whole-food identity. The hydrolyzed collagen peptide component provides the measurable collagen dose.

A strong hybrid positioning might be: “Bone broth-inspired collagen peptide powder with standardized collagen peptides and savory whole-food flavor.”

This avoids relying on variable broth solids alone while still preserving the consumer-friendly bone broth concept.

Example Product Architecture

配方類型	Main Ingredient Strategy	Best Format	品牌定位
Pure bone broth powder	Bone broth solids	Savory drink powder	Whole-food nutrition and comfort.
Collagen peptide powder	水解膠原蛋白勝肽	Stick pack or tub	Beauty, joint, mobility, active aging.
Bone broth collagen blend	Bone broth powder + standardized collagen peptides	Savory powder or capsule	Bone broth story with precise collagen dose.
Joint-health collagen formula	Collagen peptides + vitamin C + 聯合支援 成分	Powder, tablet, capsule	Mobility and connective tissue support.

最終裁決：營養補充品、食物，還是兩者兼具？

那麼，在營養飲食計劃的框架下，我們該如何看待骨湯呢？

骨湯的益處： 骨湯是種整體性食物。它能提供水分、電解質（鈣、鎂、磷），以及藥丸無法給予的醇厚慰藉。對於腸道保養與整體飲食營養補充皆極為有益。.

標準化營養補充品的必要性： 要達到特定療效——例如減少皺紋深度、提升肌膚彈性或加速傷口復原——持之以恆是關鍵。.

• 精確度： 補充劑可讓您每日精確攝取10克膠原蛋白。.
• 便利性： 無需24小時烹煮時間。.
• 效率： 較高的生物利用度確保胺基酸能抵達目標組織。.

Conclusion: Bone Broth Is Valuable, But Not Precise

Bone broth can be a nutritious whole food and a strong product story. It provides gelatin, amino acids, minerals, flavor, and a comforting format that many consumers understand.

But if the goal is a reliable collagen dose, bone broth alone is not precise enough. The collagen-derived content depends on raw material selection, cooking time, acid level, water ratio, concentration, drying method, and batch testing.

For consumers, bone broth can be part of a healthy diet. For supplement brands, standardized hydrolyzed collagen peptides are the better foundation for measurable collagen claims, consistent formulation, and repeatable product performance.

The most commercially useful solution is often a hybrid: use bone broth for the story and sensory identity, and use standardized collagen peptides for the actual collagen dose.

Need help developing a bone broth collagen product?

If you are developing a bone broth powder, collagen peptide formula, savory protein drink, capsule, gummy, tablet, or private-label collagen product, send us your target serving size, protein claim, flavor direction, and dosage format. Our formulation team can help evaluate collagen peptide selection, bone broth powder feasibility, label-claim strategy, and manufacturing options.

FAQs About Collagen in Bone Broth

How much collagen is in one cup of bone broth?

There is no universal number. One cup of bone broth may contain only a small amount of collagen-derived gelatin if it is diluted, or several grams if it is concentrated and made with collagen-rich bones and connective tissue. The only reliable way to know is to check tested protein and amino acid data.

Is the protein in bone broth the same as collagen?

Not exactly. Bone broth protein may come from gelatin, meat residues, connective tissue, and other soluble proteins. Gelatin is derived from collagen, but total protein grams should not automatically be treated as collagen peptide grams.

Is bone broth better than collagen peptides?

Bone broth is better as a whole-food, savory nutrition product. Collagen peptides are better when a precise collagen dose, solubility, low molecular weight, and consistent serving size are required.

Can a supplement brand make a collagen claim from bone broth powder?

Only if the ingredient and finished product support the claim through testing and documentation. Brands should request COA data, amino acid profile, protein content, hydroxyproline data, and label compliance review before making collagen-related claims.

Why does homemade bone broth gel in the refrigerator?

The gel texture comes from gelatin, which forms when collagen-rich connective tissue is heated and denatured. A strong gel usually indicates a higher gelatin content, but it still does not provide a precise collagen peptide dose.

What bones produce the most collagen-rich broth?

Bones and parts rich in connective tissue usually produce the most gelatin. Examples include knuckle bones, oxtail, chicken feet, wings, necks, fish heads, and fish frames. Marrow bones add flavor and fat but are not always the highest collagen source.

Is bone broth collagen bioavailable?

Bone broth provides gelatin and amino acids that can be digested, but gelatin chains are generally larger and less standardized than hydrolyzed collagen peptides. Hydrolyzed collagen peptides are processed to a lower molecular weight for better solubility and more predictable absorption.

Should a brand use bone broth powder or hydrolyzed collagen peptides?

Use bone broth powder when the main goal is flavor, whole-food positioning, and savory nutrition. Use hydrolyzed collagen peptides when the main goal is a measurable collagen serving size, beauty, joint, mobility, or active-aging positioning. Use both when you want a bone broth story with a standardized collagen dose.

參考資料

1. Alcock, R. D. et al. Bone Broth Unlikely to Provide Reliable Concentrations of Collagen Precursors Compared With Supplemental Sources of Collagen Used in Collagen Research. PubMed.
   https://pubmed.ncbi.nlm.nih.gov/29893587/
2. Shaw, M. H. & Flynn, N. E. Amino acid content of beef, chicken, and turkey bone broth. Journal of Undergraduate Chemistry Research, 2019.
   https://www.westmont.edu/sites/default/files/users/user1231/V19No4/Nick%20Flynn_final.pdf
3. Khatri, M. et al. The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise. Amino Acids, 2021.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC8521576/
4. Pu, S. Y. et al. Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis. Nutrients, 2023.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC10180699/
5. Martínez-Puig, D. et al. Collagen Supplementation for Joint Health: The Link between Composition and Scientific Knowledge. Nutrients, 2023.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC10058045/
6. Sato, K. Collagen-Derived Di-Peptide, Prolylhydroxyproline (Pro-Hyp): A New Low Molecular Weight Growth-Initiating Factor. International Journal of Molecular Sciences, 2020.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC7728856/
7. Virgilio, N. et al. Absorption of bioactive peptides following collagen hydrolysate intake: effect of molecular weight and raw material source. 2024.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC11325589/
8. Harvard Health Publishing. Savoring the benefits of bone broth: Worth a taste?
   https://www.health.harvard.edu/diet-and-nutrition/savoring-the-benefits-of-bone-broth-worth-a-taste
9. FDA。結構/功能聲稱。.
   https://www.fda.gov/food/nutrition-food-labeling-and-critical-foods/structurefunction-claims
10. UCLA Health. Should you take collagen supplements?
    https://www.uclahealth.org/news/article/should-you-take-collagen-supplements