Can dietary supplements improve a clinician’s well-being and health?

Published:December 15, 2017DOI:


      Many people use dietary supplements to improve their physical and mental well-being and their general health, but do not know if they really have any benefit. To our knowledge, little has been published on their use in the clinical environment, so we evaluated the evidence for their benefits in people whose work is physically and mentally challenging. Studies on nutrition and supplementation in athletes and military personnel have clearly shown that several compounds improve cognition, mental well-being, and physical performance. Based on this evidence, and with the many pressures faced by healthcare workers, as well as the need for concentration and endurance, some dietary supplements might be beneficial. Supplementation of a balanced diet with omega-3 fatty acids, vitamin B3, vitamin C and associated antioxidants, vitamin D, and protein, may improve a clinician’s physical and mental health and their performance at work. Specific research is, however, needed to evaluate this more fully.


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        • Colbert S.D.
        • Scott J.
        • Dale T.
        • et al.
        Performing to a world class standard under pressure - can we learn lessons from the Olympians?.
        Br J Oral Maxillofac Surg. 2012; 50: 291-297
        • Gerada C.
        • Jones R.
        Surgeons and mental illness: a hidden problem?.
        BMJ Careers. 2014; (Available from URL: (last accessed 20 November 2017))
        • Balch C.M.
        • Freischlag J.A.
        • Shanafelt T.D.
        Stress and burnout among surgeons: understanding and managing the syndrome and avoiding the adverse consequences.
        Arch Surg. 2009; 144: 371-376
        • Sharma A.
        • Sharp D.M.
        • Walker L.G.
        • et al.
        Stress and burnout in colorectal and vascular surgical consultants working in the UK National Health Service.
        Psychooncology. 2008; 17: 570-576
        • Marriott B.P.
        • Hibbeln J.R.
        • Killeen T.K.
        • et al.
        Design and methods for the Better Resiliency Among Veterans and non-Veterans with Omega-3's (BRAVO) study: a double blind, placebo-controlled trial of omega-3 fatty acid supplementation among adult individuals at risk of suicide.
        Contemp Clin Trials. 2016; 47: 325-333
        • Hibbeln J.R.
        • Gow R.V.
        The potential for military diets to reduce depression, suicide, and impulsive aggression: a review of current evidence for omega-3 and omega-6 fatty acids.
        Mil Med. 2014; 179: 117-128
        • Luftman K.
        • Aydelotte J.
        • Rix K.
        • et al.
        PTSD in those who care for the injured.
        Injury. 2017; 48: 293-296
        • Tang M.
        • Jiang P.
        • Li H.
        • et al.
        Fish oil supplementation alleviates depressant-like behaviors and modulates lipid profiles in rats exposed to chronic unpredictable mild stress.
        BMC Complement Altern Med. 2015; 15: 239
        • Rachetti A.L.
        • Arida R.M.
        • Patti C.L.
        • et al.
        Fish oil supplementation and physical exercise program: distinct effects on different memory tasks.
        Behav Brain Res. 2013; 237: 283-289
        • Young A.J.
        • Marriott B.P.
        • Champagne C.M.
        • et al.
        Blood fatty acid changes in healthy young Americans in response to a 10-week diet that increased n-3 and reduced n-6 fatty acid consumption: a randomised controlled trial.
        Br J Nutr. 2017; 117: 1257-1269
        • Yong L.C.
        • Petersen M.R.
        High dietary niacin intake is associated with decreased chromosome translocation frequency in airline pilots.
        Br J Nutr. 2011; 105: 496-505
        • Yong L.C.
        • Petersen M.R.
        • Sigurdson A.J.
        • et al.
        High dietary antioxidant intakes are associated with decreased chromosome translocation frequency in airline pilots.
        Am J Clin Nutr. 2009; 90: 1402-1410
        • Gausden E.B.
        • Christ A.B.
        • Zeldin R.
        • et al.
        Tracking cumulative radiation exposure in orthopaedic surgeons and residents: what dose are we getting?.
        J Bone Joint Surg Am. 2017; 99: 1324-1329
        • Bentley D.J.
        • Dank S.
        • Coupland R.
        • et al.
        Acute antioxidant supplementation improves endurance performance in trained athletes.
        Res Sports Med. 2012; 20: 1-12
        • Johnston C.S.
        • Barkyoumb G.M.
        • Schumacher S.S.
        Vitamin C supplementation slightly improves physical activity levels and reduces cold incidence in men with marginal vitamin C status: a randomized controlled trial.
        Nutrients. 2014; 6: 2572-2583
        • Parry D.
        • Oeppen R.S.
        • Gass H.
        • et al.
        Review: Impact of hydration and nutrition on personal performance in the clinical workplace.
        Br J Oral Maxillofac Surg. 2017; (pii: S0266-4356(17)30731-3 [Epub ahead of print])
        • de Oliveira I.J.
        • de Souza V.V.
        • Motta V.
        • et al.
        Effects of oral vitamin C supplementation on anxiety in students: a double-blind, randomized, placebo-controlled trial.
        Pak J Biol Sci. 2015; 18: 11-18
        • Pasiakos S.M.
        • Montain S.J.
        • Young A.J.
        Protein supplementation in U.S. military personnel.
        J Nutr. 2013; 143: 1815S-1819S
        • Farnfield M.M.
        • Carey K.A.
        • Gran P.
        • et al.
        Whey protein ingestion activates mTOR-dependent signalling after resistance exercise in young men: a double-blinded randomized controlled trial.
        Nutrients. 2009; 1 (Erratum in: Nutrients 2010;2:317-8): 263-275
        • Lanhers C.
        • Pereira B.
        • Naughton G.
        • et al.
        Creatine supplementation and lower limb strength performance: a systematic review and meta-analyses.
        Sports Med. 2015; 45: 1285-1294
        • Gaffney-Stomberg E.
        • Lutz L.J.
        • Rood J.C.
        • et al.
        Calcium and vitamin D supplementation maintains parathyroid hormone and improves bone density during initial military training: a randomized, double-blind, placebo controlled trial.
        Bone. 2014; 68: 46-56
        • He C.S.
        • Aw Yong X.H.
        • Walsh N.P.
        • et al.
        Is there an optimal vitamin D status for immunity in athletes and military personnel?.
        Exerc Immunol Rev. 2016; 22: 42-64
        • Koundourakis N.E.
        • Androulakis N.E.
        • Malliaraki N.
        • et al.
        Vitamin D and exercise performance in professional soccer players.
        PLoS One. 2014; 9e101659
        • Umhau J.C.
        • George D.T.
        • Heaney R.P.
        • et al.
        Low vitamin D status and suicide: a case-control study of active duty military service members.
        PLoS One. 2013; 8e51543