The invention relates to a composition capable of lowering blood glucose. The composition comprises the following components in parts by weight: 6-8 parts of
polygonatum sibiricum, 8-12 parts of
balsam pear, 12-15 parts of radix puerariae, 15-20 parts of
astragalus membranaceus, 15-18 parts of
radix ophiopogonis, 8-10 parts of the fruit of Chinese wolfberry, 10-15 parts of
potentilla discolor, 20-25 parts of Chinese yam, and 6-8 parts of folium mori. Single items of the five traditional Chinese medicines, namely the
astragalus membranaceus,
polygonatum sibiricum,
balsam pear, radix puerariae and Chinese yam are subjected to careful selection, cleaning, purification, air-
drying, powdering, pulverization, powdering and extracting, and synthesized into a semi-finished product according to the ratio for standby; the
radix ophiopogonis and fruit of Chinese wolfberry are subjected to careful selection, cleaning, purification, air-
drying, decoction and concentration, and then are synthesized into a semi-finished product according to the ratio for standby; single items of the
potentilla discolor and folium mori are subjected to careful selection, cleaning, purification, decoction, concentration and extraction, and then are synthesized into a semi-finished product according to the ratio for standby; finally, the synthesized semi-finished products are synthesized and manufactured into a
capsule or particle or tablet product. The composition has the health functions of adjusting the blood glucose, adjusting the blood fat and eliminating complication, is convenient to use, and has the advantages of being natural, environment-friendly, safe, healthy, and effective in conditioning.