Protein serves as the primary nitrogen source for the human body, not only supplying energy for consumption but also facilitating the synthesis of new tissues. In adults, protein accounts for approximately 17% of body weight, with 3% undergoing metabolic renewal daily. Protein powder offers multifaceted benefits: infants, adolescents, pregnant women, and lactating mothers require it not only for tissue protein renewal but also for new tissue synthesis.When protein intake is insufficient, fundamental life functions suffer. This can cause growth retardation, underweight conditions, and intellectual developmental disorders in children and adolescents. Adults may experience fatigue, weight loss, anemia, reduced plasma albumin levels, and even edema. It can also lead to menstrual disorders in women. Consuming protein powder can effectively prevent or alleviate these symptoms.【Disease Prevention】
Heart disease ranks as the leading cause of death in Western developed nations. Elevated plasma cholesterol levels are a primary contributor to this condition.Animal fats in the diet elevate plasma cholesterol levels, significantly contributing to atherosclerosis and heart disease. Excess saturated fatty acids, cholesterol, and blood cholesterol directly correlate with heart disease. Reducing plasma cholesterol levels consequently lowers the risk of heart disease.In 1982, scientists from multiple countries conducted comparative studies in Italy and Switzerland, replacing animal protein with soy protein in patients with high cholesterol. Results showed that daily intake of 50 grams of soy protein reduced total plasma cholesterol by 20%. This research demonstrated that soy protein can lower blood lipids and mitigate the adverse effects of cholesterol on the heart in patients with high cholesterol.
In the United States, physicians recommend that heart disease patients consume soy protein before resorting to cholesterol-lowering medications. Soy protein is neither a drug (thus free of toxic side effects) nor expensive, yet it effectively prevents heart disease without any adverse effects.【Reducing Kidney Burden】
Kidney disease is a common long-term complication of diabetes, affecting over 20% of diabetic patients. Consuming animal protein increases kidney strain, potentially worsening the condition. Soy protein helps prevent and mitigate kidney damage caused by animal protein by lowering plasma cholesterol levels. Dietary studies on kidney disease patients show that replacing animal protein with soy protein yields the best results, and patients readily accept soy-based foods.
【Nutritional Value】
1. Contributes to bodily structure and metabolism
Protein is a vital nutrient intrinsically linked to all life processes. It participates in bodily structure and metabolism, contributes to genetic information composition and metabolic functions, and provides caloric energy.
2. Varying Digestibility, Absorption, and Utilization by the Human Body
Proteins are extremely diverse. Proteins from different food sources exhibit varying degrees of digestibility, absorption, and utilization by the human body. This means that different types of proteins have distinct nutritional values. The primary factor determining a protein's nutritional value is the types and levels of essential amino acids it contains.The Amino Acid Score (AAS) is a commonly used indicator for evaluating the types and content of essential amino acids in proteins.
3. Healthy individuals do not need to consume protein powder
The "Dietary Reference Intakes for Chinese Residents" recommends daily protein intake of 65–90 grams per adult, or 10–12% of total energy intake, to meet metabolic needs. Additionally, protein requirements vary based on age, body weight, and physical activity level. Children and adolescents in growth and development phases, as well as pregnant or lactating women, generally require higher protein intake.