How To Order

Research Diets, Inc. has established a scientific Resource Center staffed with exceptional scientists with access to over 30,000 original OpenSource Diet® formulas. Contact us and start the conversation with one of our scientists. We believe that the value of our products is in the conversations we have with our scientist customers. So you won't find any impersonal online ordering page. Our conversations often begin with discussions of animal models being used, desired phenotype and dietary requirements. Next, our scientists will search the published literature to provide you with tools to make an informed decision on diet selection based on solid science. Only then will we recommend a diet formulation.

Delivery Standard Packaging Special Packaging Storage/ Expiration
In-Stock Diets Ships in 2-3 days if ordered by 2PM Heat Seal w/Nitrogen
2.5 kg. bags in 12.5 kg. boxes. Smaller quantities available on request.
Vacuum Seal w/Nitrogen Flush Low Fat- Room temp. High Fat- Frozen.
6 mo. Expiration
Custom Diets Ships in 5-7 days 2.5 kg, 5 kg, 12.5 kg. Smaller quantities available on request. Heat Seal w/Nitrogen, Vacuum Seal w/Nitrogen Flush Low Fat- Room temp. High Fat- Frozen.
6 mo. Expiration


Almost all of our diets can be gamma- irradiated for use in barrier facilities. Irradiated diets are “double-bagged” inside our standard double-walled corrugated carton. Some of our stock diets are available irradiated (10-20 kGy) at standard prices. Other diets are irradiated per order at an additional cost depending on quantity and lead-time. Diets are sent weekly for irradiation to respond quickly to your requests.

Historically our diets have been packaged in large plastic bags, or double-bagged if irradiated. The diets typically comes in 2.5, 5, or 12.5 kg aliquots depending upon the order size. We do offer a variety of smaller sized bag options, which would allow for smaller amounts of diet to be stored in isolators where space is limited. It also allows for surplus diet to be stored in appropriate conditions (-20C for high-fat diets, for example) and prevents all of the diet from becoming contaminated if a seal is accidentally broken. Heat sealed and vacuum packaging are also available, though we recommend heat sealed bags over vacuum packaging, as the irradiation process can cause the vacuum seal to break. Moreover, the vacuum process can also crush soft pellets (high-fat) and allow low-fat diets with defined edges to pierce the bag during the vacuum process.

To Order
Specify “irradiation” on your purchase order by adding the letter "i" to the diet number. For example D12492i. There is an additional charge for gamma irradiation. Please inquire.

Benefits of Irradiation
  • Causes minimal nutritional damage to the formulated diet
  • Does not affect the palatability of the animal diet


Research Diets, Inc. sells OpenSource Diets direct to customers worldwide in more than 60 countries. To buy direct from our factory contact .  In our effort to provide local service in some areas we have certified distributors representing our interests. If you would prefer to work with a local company see the list below.

  • All
  • Europe
  • Japan
  • China
  • South Korea
  • Taiwan
  • India
  • Middle East
  • North & South America
EP Trading Co., Ltd.

Kagurazaka PLAZA Bldg. B1, 4-8 Kagurazaka, Shinjuku-ku, Tokyo, 162-0825, JAPAN
T :81.(0)3-3513-6532
F: 81.(0)3.3513.6535

Contact EP Trading for custom and in-stock diet formulations.

Smedevangen 5
DK-3540 Lynge
Tlf: +45 39 65 18 80
Vat: DK 10328497

Scanbur Research

Silovej 16-18
2690 Karlslunde
Tlf: +45 5686 5625


Tel: 400-8088-345

Tel (Beijing): 010-57798038
Tel (Shanghai): 021-61052096
Tel (Guangzhou): 020-83808789
Tel (Chengdu): 028-83218791
Email (Beijing):
Email (Shanghai):
Email (Guangzhou):
Email (Chengdu):

BioPike (Hong Kong)

Unit 04, 7/F, Bright Way Tower
No. 33 Mong Kok Road
Kowloon, Hong Kong
Tel (Hong Kong): +852-29529513
Fax: (852)2638 2600
Email (Hong Kong):


TEL: 82-31-425-6300
FAX: 82-31-425-6677
2F, 2, Hanjikgollam-ro, Uiwang-si, Gyeonggi-do, Republic of Korea 16013

Central Lab. Animal Inc.

5F Eunsuk B/D 64 woomyundong seochoku seoul 137-900 korea


A-8F, Advanced Institutes of Convergence Technology, 145,
Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16229, Korea

Contact Person: Mr. JUNG, IN-KYU
Tel: (82)31-888-9355

RaonBio Inc.

2201 U-Tower, 1029 yeongdeok-dong, Giheung-gu,
Yongin-si ,Gyeonggi-do,Korea

Tel: 82-31-283-4197
Fax: 82-31-284-4197

Bio-Cando Inc.

FAX: +886-3-211-8556
Incubation Center, No.259, Wen-Hua 1st Road, Gui-Shan, Tao-Yuan, Taiwan 33302

Sunpoint Scientific Instrument Co., Ltd

TEL: 886 3 327 3889
FAX: 886 3 327 3908
Office main email:
6f-2, No.146, Wen Shing Rd., Kwei Shan Hsiang,
Taoyuan Hsien 333, Taiwan

Hong Sheng Instruments Co.Ltd.

4F, No.31, Lane 280, Sec.2 HuanHe S. Rd.
Taipei Taiwan ROC
Vincent Chi, Sales Director
Tel: +886-2-23025228
Fax: +886-2-23028940
Mobile: +886-928002155

Taiwa Instrument Co. Ltd

Tina Hung
7F., No.43, Lane 3, Sec. 1
Zhongzheng E.Rd.
New Taipei City, Taiwan
Phone: +886-2-2626-3966
Fax: +886-2-2626-3066

Biochiefdom International Co., Ltd.

Samuel Yen
12F.-1, No.89, Sec. 1, Beixin Rd., Xindian Dist.,
New Taipei City, 23147, Taiwan
Tel: +886 2 2916 1188

SR Technologies

2346 Patriot Way
Corona CA 92882, USA
Ph: 951-898-8333
Direct: 951-642-1907

Labex Corporation

3022, Sector-A, Pocket B&C,
Vasant Kunj, New Delhi-110070
Ph. 91-11-26124727
Fax: 91-11-26124735
Cell: +91-9810229100

BTL Biotechno Labs Pvt Ltd

613-A, Ansal Chamber-II,
Bhikaji Cama Place, New Delhi-11006
Phone: +91- 8860924629 , 07291852429

BioTAG Ltd.

Tel: +972 52-552-2748
Contact Person: Mr Yossi Doron
E-mail :

Sidco, Inc.

8615 Commodity Circle
Suite 9
Orlando, FL 32819
Andrew Melendez
Tel: (407) 479-8880


23200- TURKEY
PHONE:090 424 238 70 74

Cedarlane Corporation (Canada)

4410 Paletta Court
Burlington, ON L7L 5R2

Sellex, Inc. (Brazil)

Patricia, MSc, PhD.
Scientific Support Specialist

5225 Wisconsin Ave, NW; Suite 306
Washington DC 20016 USA
+1 (202) 686-3044

​Sellex (SAC)
São Paulo - SP - Brazil
+55 (11) 4666-4313

Fundep (Fundação de Desenvolvimento da Pesquisa)

Tatiana Borges Vigato

Prion Lab SpA (Chile)

Phone: + 56 - 9 -6 843 66 28
Hugo Roa R.
Product Manager


Fernando Grob V
Movil: 8 - 889 2928
Tomas Moro 869 C43. Las Condes
Santiago, Chile

Equipos, Instrumentos e Insumos para Investigacion Cientifica
Nutrimix de México S.A. de C.V.

Nirvana Altamirano García.
Tel: +52 (55) 5653 6463 / 6468/ 6485
Fax: +52 (55) 5489 4882

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Ready to speak with a scientist?

Mike 2178 300x300

Michael A. Pellizzon, Ph.D.

Science Director
Qing 300x300

Qing Ai, Ph.D.

Project Manager and Scientist
Holly 0947

Jia-Yu (Holly) Ke, Ph.D.

Senior Scientist/Asia Marketing Director