Protect joints: Prevention instead of repair

A joint doesn't send an invoice in advance. The first pull in the knee at 38. The shoulder that needs a moment after waking up. The ankle that acknowledges the first flight of stairs of the day with a quiet protest. Easy to dismiss as „just getting older“.

But behind this is a tissue with an unusual property: it hardly ever repairs itself. And this is precisely what makes the difference between a strategy that works and one that comes too late.

Why cartilage doesn't get a second chance

Articular cartilage - the smooth, white layer at the ends of the bones - is biologically a special case. It is avascular, aneural and alymphaticNo blood vessel, no nerve, no lymph vessel runs through it.

This has consequences. While almost every other tissue in the body is supplied with repair cells, oxygen and nutrients via the bloodstream after an injury, cartilage is cut off from this. Its cells - the Chondrocytes - make up only about 1 to 10 % of the tissue, have a low metabolic rate and hardly divide at all. They are nourished exclusively via diffusion from the synovial fluid.

The result: once the cartilage has worn down significantly, it does not grow back. There is no complete self-healing. What is lost remains lost. Over 250 million people worldwide are affected by cartilage degradation - and the only therapy that works reliably starts before the damage occurs.

Hence the title of this text: Prevention instead of repair. With cartilage, this is not just an empty phrase, but a biological fact.

What attacks the cartilage

• Mechanical overload. Shock loads, one-sided movement patterns, sports injuries - they cause microcracks in the cartilage surface.
• Too little exercise. It sounds paradoxical, but it is crucial: cartilage has no blood supply. It is „flushed“ by pressure and relief - movement pushes nutrients in and waste products out. A joint that hardly moves is starving.
• Body weight. When walking, the knee is subjected to 2.5 to 2.8 times the body weight; when going down stairs, 3.1 times; and when running, 3.6 to 4.2 times. Every additional kilogram means around 4 kilograms of extra weight per step.
• Age. From the mid-20s onwards, the the body's own collagen production – The cartilage matrix is being renewed more slowly than it is being broken down.
• Inflammation. Inflammatory messengers and matrix-degrading enzymes (MMPs) actively break down the cartilage substance.
• Weak muscles. Muscles that stabilise a joint absorb part of the force. If they are missing, the full load lands on the cartilage.

The five levers of prevention

The good news is that four out of six of these factors can be directly influenced. This results in five specific levers.

1. the right movement

Because cartilage has no blood supply, movement is its only „meal“. Every loading and unloading cycle pumps joint fluid into the tissue and out again. The decisive factor is the dose: Regular, joint-friendly exercise - Cycling, swimming, brisk walking - keeps the cartilage nourished without overloading it. Low-impact continuity beats infrequent peak loads.

2. strong muscles

The muscles around a joint are its shock absorbers. Strong thigh muscles absorb a considerable amount of the force that would otherwise hit the knee cartilage directly. Strength training is therefore not the opposite of joint protection - it is Joint protection. If you specifically train the muscles that support the joints from the age of 35, you build up a mechanical buffer.

3. body weight

Because of the 4:1 leverage effect, weight is the factor with the greatest mechanical leverage. Five kilograms less body weight means around 20 kilograms less pressure on the knee - with every single step. Over the course of a day with several thousand steps, this adds up to tonnes. Weight management is the most effective purely mechanical relief for the joint.

4. low-inflammatory diet

Diet works in two ways. Firstly, it provides the building blocks: sufficient protein, plus vitamin C as an essential co-factor in collagen synthesis. Secondly, it regulates inflammation levels: omega-3 fatty acids have an anti-inflammatory effect, whilst long-term high sugar intake and trans fats have the opposite effect. A low level of chronic inflammation slows down the enzymatic breakdown of the cartilage matrix.

5. targeted supplementation with collagen peptides

The fifth lever acts directly on the cartilage substance - and is the best-studied of the supplementary measures.

Collagen peptides and cartilage - what research shows

The dry mass of cartilage consists of about 60 % from collagen, It is the fibre network that gives the fabric tensile strength and holds the water-binding proteoglycans in place.

Hydrolysed collagen peptides - collagen enzymatically broken down into short fragments - are absorbed in the intestine at a rate of over 90 %. Remarkable: Preclinical studies show that these peptides are absorbed a few hours after ingestion. accumulate in the cartilage tissue. There, they act not only as a building block, but also as a signal: the peptide fragments stimulate the chondrocytes, synthesise more cartilage matrix. In cell studies on human and animal chondrocytes, this effect is detectable in a dose-dependent manner.

Three relevant clinical findings:

• Clark et al, 2008 (Current Medical Research and Opinion): 147 active subjects with activity-related joint pain were given 10 g of collagen hydrolysate or placebo daily for 24 weeks. The verum group showed Significantly less joint pain under load.
• Zdzieblik et al.In a randomised controlled study, specific collagen peptides measurably reduced discomfort in the lower extremities of active people in everyday life.
• McAlindon et al., 2011The results suggest that the anabolic effects of collagen peptides on articular cartilage shown in the laboratory can be transferred to the clinical situation.

Important for categorisation: This is Prevention, not repair. Collagen peptides do not rebuild destroyed cartilage. They supply the chondrocytes with building blocks and synthesis impulses while the tissue is still intact - and thus support the balance between formation and degradation.

Prevention is cheaper than any repair

The logic of cartilage is relentless: there is no subsequent restoration. There is only the window before - the decades in which the tissue is still complete. This is precisely why 35+ is not too early, but the right Timing. If you start protecting your joints at 35, you are making a decision in favour of mobility at 65.

The five levers work together: Exercise nourishes the cartilage, muscles relieve it, a healthy weight reduces the mechanical load, a low-inflammatory diet slows down degradation - and collagen peptides provide the cartilage matrix with specific building blocks and synthesis impulses.

As with all active ingredients, the fifth lever depends on the form. In liquid form, there is no disintegration and dissolution step in the stomach and absorption begins immediately. The Liquid collagen from Bettervita For example, it combines 10,000 mg of hydrolysed collagen peptides (types I and III) with vitamin C – the co-factor without which the body cannot produce any new collagen from the peptides. The article explains how this same active ingredient affects the skin Skin during the menopause.

The cartilage that you protect at 35 is what you need at 65. It doesn't grow back - but it rewards you every day that you help it.