Joanne Slavin, a professor of food science at the University of Minnesota, discusses the protein phenomenon, addressing the myths around excessive protein consumption. She explores protein intake guidelines across different life stages and the importance of diverse and sustainable protein sources, highlighting the significance of high-quality protein sources in plant-based diets.
Meeting the recommended daily allowance of protein is essential for body functions and preventing deficiencies.
Balancing protein intake from different sources, including plant-based options, is crucial for sustainability and health outcomes.
Deep dives
Importance of Protein in Our Diet
Protein plays a crucial role in our diet, as it is necessary for building body proteins and providing essential amino acids. Joanne discusses the importance of meeting the recommended daily allowance (RDA) of protein, which varies based on factors like age and activity level. She highlights that protein from animal sources like eggs is of high quality and easily digestible for the body. Joanne explains that while most people consume enough protein, certain groups such as babies and older adults may require additional intake to support growth and prevent muscle loss.
Understanding Protein Consumption and Guidelines
Joanne clarifies the guidelines for protein consumption, recommending 0.8 grams per kilogram of body weight for adults. She explains how this translates into different food servings, such as dairy and meat, which are common protein sources. Joanne mentions that bodybuilders may require a higher percentage of protein in their diet, while cautioning against excessive protein intake. She emphasizes the importance of moderation and variety in protein consumption for overall health.
Balancing Protein Sources and Sustainability
Joanne addresses the balance between protein sources and sustainability, highlighting that meat and dairy, while rich in protein, can have environmental implications. She advocates for considering plant-based proteins like soy, beans, nuts, and seeds for sustainable nutrition. Joanne discusses the challenges of maintaining high-quality protein intake while reducing animal product consumption. She emphasizes the significance of ensuring adequate protein intake through a variety of sources for optimal health.
Sales of cottage cheese are booming thanks to a boost from protein-hungry social media influencers. But do we really need all this extra protein? Madeleine Finlay speaks to Joanne Slavin, a professor of food science and nutrition at the University of Minnesota, to find out what exactly protein is doing in our bodies, and what happens to it when we consume it in excess. Help support our independent journalism at theguardian.com/sciencepod
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