All articles tagged with #essential amino acids
A Dutch dietary modeling study shows that replacing animal-based foods with plant-based substitutes can lower total protein and essential nutrient intakes across age groups, with older adults and adolescents most at risk. The findings suggest careful planning, fortified foods, and age-tailored guidance are needed to maintain nutritional adequacy when shifting toward plant-based eating.
Purdue researchers found that two-ounce equivalents of animal-based proteins (lean pork loin and eggs) delivered more bioavailable essential amino acids into the bloodstream than the same amount of plant-based proteins (beans and almonds) in both young and older adults, suggesting protein quality can matter as much as portion size for muscle health and aging. Newer research adds nuance—soy protein often aligns more closely with animal protein, and blends of animal and plant proteins may offer advantages—while the study’s limitations include not directly measuring muscle protein synthesis and real-world portion variability.
A new study reveals a two-track gut-brain signaling system: gut cells release CNMa in response to protein deficiency, triggering a fast neural alert to the brain and a slower hormonal signal that sustains a protein-seeking appetite while suppressing sugar cravings by dampening DH44 sugar neurons; gut microbes modulate this pathway and the mechanism is conserved in mice, independent of FGF21, suggesting novel targets for obesity and eating disorders.
New research from Purdue University suggests that animal-based protein foods provide greater bioavailability of essential amino acids (EAA) compared to plant-based protein foods. The study challenges the notion that animal and plant proteins are nutritionally equivalent, as stated in the Dietary Guidelines for Americans. The findings indicate that animal-based proteins, such as lean pork and eggs, are more effective in providing EAAs for muscle and whole-body protein building. The study highlights the importance of considering protein quality and nutrient content when making dietary recommendations, especially for vulnerable populations like older adults. Further research is needed to understand the impact of different protein sources on muscle and whole-body health.
Building muscle while on a plant-based diet can be challenging, but it is possible with the right approach. Protein is essential for muscle building, and while animal-based protein contains all essential amino acids, plant-based protein requires careful meal planning to ensure all essential amino acids are consumed. A plant-based diet has numerous health benefits, including reducing the risk of heart disease and certain cancers. To ensure adequate protein intake, include a variety of plant-based foods in each meal, and consider supplementing with nutrients like vitamin B12, iron, zinc, calcium, selenium, and omega-3 fatty acids.
Getting enough protein on a vegan diet can be challenging, but it's not impossible. The recommended daily amount of protein to prevent deficiency is 0.8 grams per kilogram of body weight. Vegan protein sources include beans, lentils, nuts, seeds, quinoa, oats, tofu, tempeh, and nutritional yeast. Tips to increase protein intake include using quinoa instead of rice, incorporating vegan protein powder, providing the body with essential amino acids, starting each day with protein, adding beans to everything, and sprinkling nutritional yeast on meals.