The Soy Connection for Health Professionals

Health & Nutrition - Summer 2015 - Vol 23, No 3 Protein and Muscle Mass

In This Issue: 

  • The reported prevalence of sarcopenia in the United States is 22.6% and 26.8% for women and men, respectively. Several pathophysiological mechanisms have been associated with the etiology of sarcopenia, from decreased physical activity, to disruption in the regulation of muscle protein turnover. Like other age-related conditions, sarcopenia has the potential to be mitigated by a healthy lifestyle and diet. Snacks, especially those composed of nutrient-dense foods, can be an important part of a person’s diet. Snacking helps spread total daily calories across the day, which in turn can help keep blood sugar under control.

Soy Protein and Muscle Protein Synthesis

Skeletal muscle accounts for ~40% of body weight and contains 50–75% of body proteins. In addition to being the most abundant tissue in the body, skeletal muscle serves a fundamental role for a variety of biological needs. For instance, skeletal muscle is imperative for force production and movement, and increases in skeletal muscle mass are often associated with improvements in strength, function, and performance. Skeletal muscle also serves as the primary site for glucose disposal and acts as a reservoir for amino acids that function as precursors for immune function during injury and illness. Consequently, the loss of muscle mass not only compromises physical function, but it predisposes individuals to greater risk for injury and illness, longer recovery, and increased susceptibility to chronic disease. Read more

Dietary Interventions in the Prevention and Management of Sarcopenia

Sarcopenia has been defined as a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength with a risk of adverse outcomes such as physical disability, poor quality of life and death. In the United States, the direct costs of sarcopenia have been estimated to be $18.5 billion. The reported prevalence of sarcopenia in the United States is 22.6% and 26.8% for women and men, respectively. Several pathophysiological mechanisms have been associated with the etiology of sarcopenia, from decreased physical activity, to disruption in the regulation of muscle protein turnover. Read more

Easy Protein Snacks

Late afternoon stomach rumbling? Long meeting before lunch? It’s easy to keep energy up and hunger at bay by eating a snack high in protein. Protein-rich snacks will keep you feeling full longer than a less nutritious food like a pack of cookies, chips or a candy bar. Read more