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Structural proteins

10 steps to a stable framework

In every cell, structural proteins ensure that form and function go hand in hand: they build frameworks, connect building blocks and coordinate repair processes after mechanical stress. Their variety and adaptability range from elastic links to rigid networks that remodel as needed. But how do they manage to remain both robust and flexible at the same time?
  • Support collagen specifically

Collagen gives tendons, ligaments, cartilage, teeth and bones tensile strength. Make sure to regularly supply your body with the necessary building blocks so these tissues retain their load-bearing capacity.

  • Strengthen keratin for hair and nails

Keratin provides structural strength to hair and nails. Support keratin formation through suitable nutrients and targeted food choices.

  • Maintain elastin for elasticity

Elastin is crucial for the lungs, blood vessels, organ membranes and skin because it enables elasticity. Pay attention to nutrients that support the formation of elastin and collagen so the function of elastic tissues is maintained.

  • Use animal sources of collagen

Direct animal sources of collagen include meat, dairy products, fish and eggs. These foods provide building blocks that can support collagen production.

  • Plant sources for building blocks 

Plant foods such as legumes, cereal products, nuts and seeds also provide important amino acids and can promote collagen and keratin formation.

  • Take cysteine to support keratin

Since cysteine is a component of keratin, include foods high in cysteine in your daily diet, for example eggs, seeds, dairy as well as beef and pork.

  • Don't forget vitamin C

Vitamin C is necessary for the formation of collagen and keratin. Regularly include citrus fruits, berries, broccoli, peppers and leafy greens in your meal plan.

  • Plan cold-water fish intentionally

To naturally support elastin and collagen formation, aim to eat cold-water fish such as salmon, herring or sardines at least twice a week.

  • Consider vegetarian/vegan alternatives

Many collagen and keratin supplements come from animal sources (e.g. hooves, feathers). If you follow a vegetarian or vegan diet, choose verified plant-based alternatives based on soy or wheat amino acids.

  • Watch for absorption problems

Be aware that medication intake or certain diseases can disrupt the utilisation of essential amino acids in the small intestine. If you suspect an issue, have your status medically checked so a deficiency can be detected early.

editorial.facts

  • Structural proteins that provide strength and shape make up almost one third of all proteins in the body.
  • The largest group of structural proteins in our body are collagens.
  • About 15 percent of your body weight is made up of proteins (in a 70-kg man roughly 11 kg). Proteins supply about 4 kcal per gram, so about half the energy of fat.