Lynda A. Frassetto, MD


Dr. Lynda A. Frassetto is an internist and kidney specialist at UCSF Medical Center. She also serves as an associate program director for the adult General Clinical Research Center at UCSF, where she helps researchers run clinical trials and conducts her own research on the long-term effects of diet on diseases associated with aging.

Frassetto earned a medical degree at the University of Connecticut in 1983. She worked as an emergency room doctor at the State University of New York's Kings County Hospital in Brooklyn and as a hospitalist at the University Medical Center in Fresno before completing a nephrology fellowship at UCSF in 1989. She joined UCSF Medical Center in 1993. She is a professor of medicine at UCSF.


Dialysis Center
1675 Scott Street
San Francisco, CA 94143-1617
Phone: (415) 885-7421
Fax: (415) 885-7396

Hours: Monday to Saturday
5 a.m. – 10 p.m.

Board Certification

Nephrology, American Board of Internal Medicine

Academic Title


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University of Connecticut 1983

Selected Research and Publications

  1. Hietavala EM, Stout JR, Frassetto LA, Puurtinen R, Pitkänen H, Selänne H, Suominen H, Mero AA. Dietary acid load and renal function have varying effects on blood acid-base status and exercise performance across age and gender. Appl Physiol Nutr Metab. 2017 Aug 21.
  2. Wu HF, Hristeva N, Chang J, Liang X, Li R, Frassetto L, Benet LZ. Rosuvastatin Pharmacokinetics in Asian and White Subjects Wild Type for Both OATP1B1 and BCRP Under Control and Inhibited Conditions. J Pharm Sci. 2017 Sep; 106(9):2751-2757.
  3. Arentson-Lantz EJ, Saeed IH, Frassetto LA, Masharani U, Harnish RJ, Seo Y, VanBrocklin HF, Hawkins RA, Mari-Aparici C, Pampaloni MH, Slater J, Paddon-Jones D, Lang TF. 11C-L-methyl methionine dynamic PET/CT of skeletal muscle: response to protein supplementation compared to L-[ring 13C6] phenylalanine infusion with serial muscle biopsy. Ann Nucl Med. 2017 May; 31(4):295-303.
  4. Faber KP, Wu HF, Yago MR, Xu X, Kadiyala P, Frassetto LA, Benet LZ. Meal Effects Confound Attempts to Counteract Rabeprazole-Induced Hypochlorhydria Decreases in Atazanavir Absorption. Pharm Res. 2017 Mar; 34(3):619-628.
  5. Frassetto LA, Gibson S. Febuxostat and Increased Dialysis as a Treatment for Severe Tophaceous Gout in a Hemodialysis Patient. Case Rep Nephrol. 2016; 2016:9106935.
  6. Sebastian A, Frassetto LA. A neglected requirement for optimizing treatment of age-related osteoporosis: Replenishing the skeleton's base reservoir with net base-producing diets. Med Hypotheses. 2016 Jun; 91:103-108.
  7. Frassetto LA, Schloetter M, Mietus-Synder M, Morris RC, Sebastian A. Metabolic and physiologic improvements from consuming a paleolithic, hunter-gatherer type diet. Eur J Clin Nutr. 2015 Dec; 69(12):1376.
  8. Moassesfar S, Masharani U, Frassetto LA, Szot GL, Tavakol M, Stock PG, Posselt AM. A Comparative Analysis of the Safety, Efficacy, and Cost of Islet Versus Pancreas Transplantation in Nonuremic Patients With Type 1 Diabetes. Am J Transplant. 2016 Feb; 16(2):518-26.
  9. Masharani U, Sherchan P, Schloetter M, Stratford S, Xiao A, Sebastian A, Nolte Kennedy M, Frassetto L. Metabolic and physiologic effects from consuming a hunter-gatherer (Paleolithic)-type diet in type 2 diabetes. Eur J Clin Nutr. 2015 Aug; 69(8):944-8.
  10. Lambert H, Frassetto L, Moore JB, Torgerson D, Gannon R, Burckhardt P, Lanham-New S. The effect of supplementation with alkaline potassium salts on bone metabolism: a meta-analysis. Osteoporos Int. 2015 Apr; 26(4):1311-8.
  11. Kapogiannis D, Boxer A, Schwartz JB, Abner EL, Biragyn A, Masharani U, Frassetto L, Petersen RC, Miller BL, Goetzl EJ. Dysfunctionally phosphorylated type 1 insulin receptor substrate in neural-derived blood exosomes of preclinical Alzheimer's disease. FASEB J. 2015 Feb; 29(2):589-96.
  12. Yago MR, Frymoyer A, Benet LZ, Smelick GS, Frassetto LA, Ding X, Dean B, Salphati L, Budha N, Jin JY, Dresser MJ, Ware JA. The use of betaine HCl to enhance dasatinib absorption in healthy volunteers with rabeprazole-induced hypochlorhydria. AAPS J. 2014 Nov; 16(6):1358-65.
  13. Feinman RD, Pogozelski WK, Astrup A, Bernstein RK, Fine EJ, Westman EC, Accurso A, Frassetto L, Gower BA, McFarlane SI, Nielsen JV, Krarup T, Saslow L, Roth KS, Vernon MC, Volek JS, Wilshire GB, Dahlqvist A, Sundberg R, Childers A, Morrison K, Manninen AH, Dashti HM, Wood RJ, Wortman J, Worm N. Dietary carbohydrate restriction as the first approach in diabetes management: critical review and evidence base. Nutrition. 2015 Jan; 31(1):1-13.
  14. Lang TF, Saeed IH, Streeper T, Carballido-Gamio J, Harnish RJ, Frassetto LA, Lee SM, Sibonga JD, Keyak JH, Spiering BA, Grodsinsky CM, Bloomberg JJ, Cavanagh PR. Spatial heterogeneity in the response of the proximal femur to two lower-body resistance exercise regimens. J Bone Miner Res. 2014 Jun; 29(6):1337-45.
  15. Frassetto LA, Tan-Tam CC, Barin B, Browne M, Wolfe AR, Stock PG, Roland M, Benet LZ. Best single time point correlations with AUC for cyclosporine and tacrolimus in HIV-infected kidney and liver transplant recipients. Transplantation. 2014 Mar 27; 97(6):702-7.
  16. Fontes-Villalba M, Jönsson T, Granfeldt Y, Frassetto LA, Sundquist J, Sundquist K, Carrera-Bastos P, Fika-Hernándo M, Picazo Ó, Lindeberg S. A healthy diet with and without cereal grains and dairy products in patients with type 2 diabetes: study protocol for a random-order cross-over pilot study--Alimentation and Diabetes in Lanzarote--ADILAN. Trials. 2014 Jan 02; 15:2.
  17. Delgado C, Frassetto L. Hip fractures in hemodialysis patients. Am J Kidney Dis. 2013 Oct; 62(4):653-5.
  18. Frassetto L, Floren L, Barin B, Browne M, Wolfe A, Roland M, Stock P, Carlson L, Christians U, Benet L. Changes in clearance, volume and bioavailability of immunosuppressants when given with HAART in HIV-1 infected liver and kidney transplant recipients. Biopharm Drug Dispos. 2013 Nov; 34(8):442-51.
  19. Yago MR, Frymoyer AR, Smelick GS, Frassetto LA, Budha NR, Dresser MJ, Ware JA, Benet LZ. Gastric reacidification with betaine HCl in healthy volunteers with rabeprazole-induced hypochlorhydria. Mol Pharm. 2013 Nov 04; 10(11):4032-7.
  20. Frassetto LA, Shi L, Schloetter M, Sebastian A, Remer T. Established dietary estimates of net acid production do not predict measured net acid excretion in patients with Type 2 diabetes on Paleolithic-Hunter-Gatherer-type diets. Eur J Clin Nutr. 2013 Sep; 67(9):899-903.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.