Hydrolyzed Collagen for Tennis Elbow: Why Type I + III Matter (and How to Use It)

If you’re dealing with tennis elbow, you already know the frustrating part: tendons are slow to change. They don’t have the same rich blood supply as muscle, so they often need a smarter, more consistent approach—progressive loading + tissue-building nutrition.

One nutrition strategy that’s got a lot of attention in the tendon world is hydrolyzed collagen (collagen peptides)—especially formulas that contain Type I and Type III collagen (like this) —taken before your rehab or strengthening work.

Let’s break down what it is, why it may help, and how to use it in a way that matches the research.

First: What is hydrolyzed collagen?

Hydrolyzed collagen (often labeled “collagen peptides”) is collagen that’s been broken into smaller peptides so it dissolves easily and is more digestible than standard collagen.

Once digested, collagen peptides provide amino acids that are especially relevant to connective tissue, including glycine, proline, and hydroxyproline—the building blocks your body uses when it creates and remodels collagen-rich tissues.

Why Type I and Type III collagen are relevant for tendons

Tendons are made largely of collagen—particularly Type I, which is the primary structural collagen that supports tensile strength. Type III also plays a role in connective tissue structure and remodeling. Tendon tissue is predominantly collagen-based.

So when you see a collagen supplement labeled Type I + Type III, it basically aligns with the collagen types most associated with connective tissue (like tendons). (It doesn’t mean the supplement “goes straight to your elbow,” but it may support the raw materials and signaling involved in collagen turnover.)

The key idea: collagen + loading may be better than collagen alone

Tendons respond to mechanical loading (the right strengthening exercises done consistently). What’s exciting about the collagen discussion is the idea of supporting that remodeling process nutritionally—especially when timing is right.

The research-backed timing protocol (30–60 minutes before exercise)

Turnagöl et al (2021) found that “intake of 10–15 g of hydrolyzed collagen per day appears to be an effective strategy for the prevention and treatment of joint, tendon, and ligament injuries.” They also found most benefit in taking it 30–60 minutes before exercise.

What many clinicians and athletes use in practice (based on the body of research):

• 10–15 grams collagen peptides

• 30–60 minutes before tendon-loading exercise/rehab

• Often paired with vitamin C (because vitamin C is involved in collagen formation pathways)

How this can fit tennis elbow rehab

Think of this as a simple 3-part system:

1. Take hydrolyzed collagen peptides

2. Wait 30–60 minutes

3. Do your tendon-loading work (the right kind for tennis elbow is eccentric loading)

Consistency matters more than perfection.

The brand many of my clients use (Type I + III collagen peptides)

• Sports Research Collagen Peptides (explicitly labeled Type I + III; 11g per scoop)

  
  

If you want to align with best practices for supplements, look for:

• Third-party testing 

• Minimal additives (especially if you’re using it daily)

A few important “reality check” notes:

• Collagen peptides are not a stand-alone cure for tennis elbow.

• They may be a supportive tool alongside a well-designed loading plan.

• Tendons usually improve on a weeks-to-months timeline, not days.

• If your pain is highly irritable or you suspect nerve involvement or neck/shoulder contribution, loading needs to be adjusted accordingly.

Also: collagen is not a complete protein — so don’t let collagen replace your overall protein intake.

Safety + who should be cautious

Collagen is generally well tolerated, but consider:

• Allergies/sensitivities (bovine or marine source)

• Dietary preferences (it’s animal-derived)

• If you’re pregnant, breastfeeding, or managing complex medical conditions, check with your clinician

Bottom line

If you’re rehabbing tennis elbow and you want a simple, research-informed nutrition add-on:

✅ Hydrolyzed collagen (Type I + III)

✅ 10–15g

✅ 30–60 minutes before your tendon-loading exercises

✅ Often paired with a bit of vitamin C…may help support the body’s collagen remodeling response when combined with the right training stimulus. (Don't miss my next blog covering this topic.)

Reference

Turnagöl HH, Koşar ŞN, Güzel Y, Aktitiz S, Atakan MM. Nutritional Considerations for Injury Prevention and Recovery in Combat Sports. Nutrients. 2021 Dec 23;14(1):53.

Affiliate Disclosure

As an Amazon Associate and Amazon Creator, I earn from qualifying purchases. This means that if you click on a link in this article and make a purchase, I may receive a small commission at no additional cost to you.

I only share products that I personally use, trust, or that many of my clients have found helpful as part of a comprehensive healing plan. These recommendations are not a substitute for medical advice, diagnosis, or treatment. Always consult your healthcare provider before starting any new supplement or exercise program.