EXHIBIT 5.1

                                 DIANE D. DALMY
                                 ATTORNEY AT LAW
                              8965 W. CORNELL PLACE
                            LAKEWOOD, COLORADO 80227
                            303.985.9324 (TELEPHONE)
                            303.988.6954 (FACSIMILE)
                              DDALMY@EARTHLINK.NET



March 30, 2009



Mr. Joao Prata dos Santos
Bio-Stuff
76 Rua da Misericordia
Suite 214
Lisbon, Portugal

Re: Bio-Stuff
    Registration Statement on Form S-1


Ladies and Gentlemen:

I have acted as special legal  counsel for  Bio-Stuff,  a corporation  organized
under the laws of the State of Nevada (the  "Company"),  in connection  with the
preparation  of  a  registration   statement  on  Form  S-1  (the  "Registration
Statement"), filed with the Securities and Exchange Commission. The Registration
Statement  relates to the  registration  of an aggregate of 9,276,100  shares of
common stock of the Company (the "Common  Stock")  under the  Securities  Act of
1933, as amended (the "Securities Act'). Of the 9,276,100 shares of common stock
being  registered,  1,776,100  represents  shares  for  resale  by  the  selling
shareholders   as   named   in  the   Registration   Statement   (the   "Selling
Shareholders").










Bio-Stuff
Page Two
March 30, 2009



In connection with this opinion,  I have made such  investigations  and examined
such records,  including:  (i) the  Registration  Statement;  (ii) the Company's
Articles of Incorporation,  as amended; (iii) the Company's Bylaws; (iv) certain
records of the Company's corporate proceedings, including such corporate minutes
as I  deemed  necessary  to the  performance  of my  services  and to give  this
opinion;  (v) the  subscription  agreements  entered  into  between  the Selling
Shareholders  and the Company for the  acquisition of the shares of Common Stock
(collectively,  the "Subscription Agreements"); and (vi) such other instruments,
documents and records as I have deemed relevant and necessary to examine for the
purpose of this  opinion.  I have examined and am familiar with the originals or
copies,  certified or otherwise  identified  to my  satisfaction,  of such other
documents,  corporate  records and other  instruments as I have deemed necessary
for  the  preparation  of this  opinion.  I have  also  reviewed  the  corporate
proceedings of the Company with respect to the  authorization of the issuance of
the shares of Common Stock. In expressing this opinion I have relied,  as to any
questions of fact upon which my opinion is predicated,  upon representations and
certificates of the officers of the Company.

In giving this opinion I have assumed: (i) the genuineness of all signatures and
the authenticity and completeness of all documents submitted to me as originals;
and (ii) the  conformity  to originals  and the  authenticity  of all  documents
supplied to me as certified, photocopied,  conformed or facsimile copies and the
authenticity and completeness of the originals of any such documents.  In giving
this opinion, I have relied only upon such documents.

I am  providing  this  opinion  to you in  accordance  with  Item  601(b)(5)  of
Regulation S-K promulgated under the Securities Act for filing as Exhibit 5.1 to
the Registration Statement.  The opinions herein are limited to the Federal laws
of the United  States of America  and the law of the State of Nevada,  including
all applicable provisions of the Constitution of the State of Nevada,  statutory
provisions of the State of Nevada and reported judicial  decisions of the courts
of the State of Nevada  interpreting  those  laws.  I do not express any opinion
concerning  any  law  of  any  other  jurisdiction  or  the  local  laws  of any
jurisdiction.






Bio-Stuff
Page Three
March 30, 2009



Based upon the  foregoing,  I am of the  opinion  that the  1,776,100  shares of
Common Stock held by the Selling Shareholders are validly issued, fully paid and
non-assessable.  I am further of the opinion that the 1,776,100 shares of Common
Stock to be sold by the Selling  Shareholders  to the  public,  when sold in the
manner described in the Registration  Statement,  will be deemed validly issued,
fully paid and  non-assessable.  I am further of the opinion that the  7,500,000
shares of Common Stock to be sold by the Company to the public, when sold in the
manner described in the Registration  Statement,  will be deemed validly issued,
fully paid and non-assessable.

I hereby consent to the filing of this opinion as an exhibit to the Registration
Statement  and to the  use of my  name  in the  Prospectus  constituting  a part
thereof in connection with the matters referred to under the caption  "Interests
of Named Experts and Counsel".

Sincerely,

/s/ DIANE D. DALMY

Diane D. Dalmy