It is possible to ingest animal protein and vegetable protein in a well-balanced manner, and when the natural falling method is performed with PEG catheter without agglutination of vegetable protein, reliable nutritional supplementation is carried out and occlusion of PEG catheter occurs It also provides a semisolid nutritional composition with less burden when medical staff, caregivers, etc., administer nutritional compositions. A soy protein containing mash nutritional composition is a nutrient containing protein, lipid, and carbohydrate and a waxy nutritional composition containing agar and pectin, wherein the protein has a total protein content of 30 to 60 0.04 to 0.06% by mass of agar, and 0.1 to 0.4% by mass of pectin, and has a calorific value of 0.4 to 1.2 kcal / g.動物性たんぱく質と植物性たんぱく質をバランス良く摂取することができ、植物性たんぱく質の凝集を生じることなく、PEGカテーテルで自然落下法を施行した場合、確実な栄養補給が行なわれてPEGカテーテルの閉塞がなく、また、医療従事者や介護者等が栄養組成物を投与する際に負担の少ない半固形栄養組成物を提供する。 大豆たんぱく質含有とろみ状栄養組成物は、たんぱく質、脂質、および糖質を含む栄養素と、寒天およびペクチンを含むとろみ状栄養組成物であって、たんぱく質が全たんぱく質量に対して大豆たんぱく質が30~60質量%、寒天を0.04~0.06質量%、ペクチンを0.1~0.4質量%を含有し、熱量が0.4~1.2kcal/gである。