Beef is a kind of common meat, which is favored by people because of its rich nutritional value. Air-dried beef jerky is made of green yellow cattle. Now medical research proves that beef jerky is extremely rich in protein, eggs and amino acids needed by human body every day, so its nutritional value is extremely high. Beef jerky is particularly good for the elderly and children's physical weakness and recovery after illness. It is very effective in invigorating spleen, stomach, benefiting qi and blood, strengthening bones and muscles, quenching thirst, relieving edema, soreness of waist, weakness, etc. Eating 50g-100g of air-dried beef jerky every day can supplement the nutritional elements needed every day, and air-dried beef jerky gathers the essence of beef, which is the best in leisure nutritious food.