Expert contributors: researchers, clinicians and scientists
Seven professionals whose work covers clinical nutrition research, hospital dietetics, psycho-oncology, environmental and physical chemistry, food engineering and pharmaceutical quality control. Each profile lists the person's degrees, institutions, publications and what they cover on DietXP.
Registered pharmacist with an MSc in Dietetics who leads DietXP's content. Co-author of a 2025 Clinical Nutrition ESPEN study of 1,922 oesophageal cancer patients at Tata Memorial Hospital; ESPEN and Monash Low FODMAP certified; certified diabetic educator; more than 100 researched articles.
IISER Pune · previously ICT Mumbai · PhD NEHU Shillong
Studies how persistent pollutants and synthetic food dyes break down in water using advanced oxidation processes. More than 20 peer-reviewed papers in Chemosphere, the Journal of Water Process Engineering and others; co-inventor of patent WO 2025/061803 A1 (a bleach composition); Springer chapter on the safety of nanomaterials (2026).
Patent WO 2025/061803 A1
PhD Chemistry
IISER Pune
20+ papers
Food additive chemistry · advanced oxidation · water treatmentFull profile
Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan
Registered dietitian in the Bhutan Civil Service since 2014 and head of nutrition at the national referral hospital. MSc from Mahidol University, IDF-certified diabetes educator, WHO-certified IYCF educator, SAPEN council member, co-author of Bhutan's first complementary feeding guidelines, published in JHSMR 2025.
JDWNRH Bhutan
MSc Mahidol
IDF Diabetes Educator
SAPEN Council
Clinical dietetics · NCDs · maternal and infant nutrition · public healthFull profile
DietXP's psycho-oncologist, offering emotional support sessions for people with cancer and their caregivers: adjusting to a diagnosis, health anxiety, body image, grief and memory or concentration concerns. Fellowship-trained at Malabar Cancer Centre, previously in the geriatric clinic at Tata Memorial Hospital, and a co-author of the GOCog study protocol in BMC Geriatrics, 2026.
Fellowship in Psychooncology
MSc Psychology (Clinical)
Tata Memorial, 2024 to 2026
BMC Geriatrics 2026
Psycho-oncology · caregiver support · geriatric oncologyFull profile
Deputy Manager, QC, Acme Generics, US FDA-approved facility, Baddi
Fourteen years of pharmaceutical quality control across US FDA, Health Canada and EU-GMP regulated plants: one US FDA inspection, eight other regulatory inspections and 27 client audits with no major or critical observations. B.Pharm; approved analytical chemist, Drug Controller, Jaipur.
Technical University of Dortmund, Germany · previously JNU New Delhi
Alexander von Humboldt fellow working on single-molecule FRET, self-healing fluorophores and DNA biophysics in the group of Prof. Thorben Cordes. PhD in Chemistry from NEHU Shillong; 23 peer-reviewed papers in the Journal of Physical Chemistry, PCCP and ChemPhysChem, including work on how food polyphenols bind to proteins.
Humboldt Fellow
PhD Chemistry
TU Dortmund
23 papers
Single-molecule spectroscopy · DNA biophysics · fluorophore chemistryFull profile
ICT Mumbai · Assistant Director Grade-I (IEDS), Ministry of MSME
Doctoral researcher in food waste utilisation, process optimisation and kinetic modelling at ICT Mumbai (CSIR JRF), now an IEDS officer at the Ministry of MSME after UPSC recommendation. ANGRAU gold medallist, M.Tech NIFTEM-K, 14 international publications, peer reviewer for four journals, co-founder of the Mumbai Smart Protein Project.
UPSC recommended, IEDS
CSIR JRF
ICT Mumbai
Gold medallist, ANGRAU
Editorial disclosure: Ashutosh Tripathy contributed to DietXP's initial concept and technical framework in a private capacity before his current professional commitments. He is no longer associated with the company's operations or management, and his past involvement does not imply endorsement by his current employer.
Food engineering · process optimisation · alternative proteins · intellectual propertyFull profile
Articles written or reviewed by contributors reflect their own research and professional opinion. Apart from Sarbjeet Singh, who leads DietXP's content, and Fathimath Naeema Nasreen, DietXP's psycho-oncologist, contributors are independent of DietXP and do not represent, endorse or act for DietXP or its products unless stated. Content is educational and is not medical, dietary or pharmaceutical advice; talk to a qualified professional before making health decisions.
How it works
What the contributors do on DietXP
Write and check
Content in their own field
The chemists cover ingredient and additive chemistry, the food engineer food processing and waste, the pharmaceutical expert supplement and product quality, and the dietitians clinical nutrition. Diet and disease guides are reviewed by the clinical dietitians.
Consultations
Diet questions go to the dietitians
The chemists, the food engineer and the pharmaceutical expert do not consult. For diet and medical nutrition questions, use the consultation form: clinical cases are matched with a qualified dietitian and the fee is confirmed before booking. Emotional support for people with cancer is with DietXP's psycho-oncologist: see emotional support sessions.
Apart from Sarbjeet Singh, who leads DietXP's content, and Fathimath Naeema Nasreen, DietXP's psycho-oncologist, they are independent. They write or review articles in their own fields; their credentials belong to their own institutions and their views are their own. Ashutosh Tripathy contributed to DietXP's initial concept in a private capacity and is no longer associated with the company.
What do they review on DietXP?
Ingredient and additive chemistry (John Elisa Kumar, Mostofa Ataur Rohman), food processing and food waste (Ashutosh Tripathy), supplement and product quality (Nirdesh Kumar Raghav), clinical dietetics and public health nutrition (Tenzin Wangchuk), and oncology and clinical nutrition research (Sarbjeet Singh). Diet and disease content is reviewed by the clinical dietitians listed on the dietitians page.
Can I consult these experts?
The chemists, the food engineer and the pharmaceutical expert do not offer consultations. Fathimath Naeema Nasreen offers online emotional support sessions for people with cancer and their caregivers through DietXP. For diet and medical nutrition questions use the DietXP consultation form, which matches clinical cases with a qualified dietitian.
Knowledge Hub
Nutrition guides written and reviewed by people who do the work
Every DietXP guide is written by a researcher and checked by a clinical dietitian before it is published. The health calculators name the published method they use.
