Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 09, 2014
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Trading Symbol	nuin
Entity Registrant Name	Nutrastar International Inc.
Entity Central Index Key	0001273385
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		16,864,986
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	No
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2