Category: Proteins

Fibrous proteins, such as collagen and keratin, make up over 30% of the total protein in the human body, providing essential structural support. Incorporating foods high in fibrous proteins or their building blocks is crucial for maintaining strong hair, skin, and connective tissues, as the body's natural production decreases with age.

A study found that consuming fish rich in omega-3s promotes heart health, while other sources highlight red meat's bioavailable iron. The answer to what is considered the best meat to eat is not a simple one, as the ideal choice is often personal, depending on individual health goals, nutritional needs, and lifestyle.

Did you know that alpha-lactalbumin is the most abundant protein in human breast milk? This vital protein, often simply referred to as lactalbumin, is found primarily in milk and milk-derived products like whey protein, and plays a crucial role in infant development and adult nutrition.

According to nutrition experts, yogurt contains two main types of high-quality, complete protein: casein and whey. The dual-protein composition is the key to understanding what kind of protein is in yogurt, influencing everything from its texture to its diverse health benefits, which can aid muscle recovery, weight management, and overall nutrition.

Over 500 different amino acids are found in nature, yet only 20 are commonly encoded in the universal genetic code to build proteins. Each of these 20 amino acids is distinct due to a variable side chain, or R-group, attached to a common core structure. This unique structural feature is the key differentiator, influencing the chemical behavior and function of each amino acid within a protein.

In a healthy human, there are typically 12 to 20 grams of hemoglobin within every 100 mL of blood, and this iron-containing molecule is a quintessential example of a metal protein. This critical protein facilitates the transport of oxygen from the lungs to tissues throughout the body, showcasing the indispensable role of metals in biological processes.

Approximately 20% of the total protein found in cow's milk is whey, while the remaining 80% is casein, a composition that significantly impacts its digestion and nutritional profile. This precise ratio is crucial for understanding the properties and health benefits of milk's protein content.

Globulins are the second most abundant protein group in human blood plasma, playing critical roles in immunity and nutrient transport. While the body produces globulins internally, consuming high-quality protein from natural sources provides the essential amino acids needed to fuel this vital process.

While animal products are traditionally known for high biological value (HBV) protein, a growing number of plant foods provide all the essential amino acids our bodies need. This guide explores which plant foods contain HBV protein and how a varied, whole-foods diet easily meets protein requirements.

As a primary source of protein for many, chicken is a staple in diets worldwide. Yet, for individuals managing specific health conditions like Phenylketonuria (PKU), knowing the exact nutritional profile is critical—and yes, chicken does contain phenylalanine.