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Philippa’s research aims to understand the relationship between what we consume (e.g. micro/meso/macro-nutrients, whole foods, nutraceutical supplements) and brain function and behaviour (e.g. cognition, well-being, stress, sleep). She has a particularly interest in the effects of omega-3 fatty acids on cognition and brain health throughout the lifespan.

Her current research interests are:

The effects of omega 3 fatty acids on cognition, sleep, stress and well-being

Investigating the differential effects of individual omega-3 fatty acids, and individual response to omega-3 fatty acid supplementation 

The relationship between essential nutrients and sleep

• Acute effects of mango leaf extract on cognitive function in healthy adults: a randomised, double-blind, placebo-controlled crossover study, Dodd, F., Kennedy, D., Johnson, J., Haworth, E., Greener, J., Jackson, P. 11 Apr 2024, In: Frontiers in Nutrition
• Acute Cognitive Performance and Mood Effects of Coffeeberry Extract: A Randomized, Double Blind, Placebo-Controlled Crossover Study in Healthy Humans, Jackson, P., Kenney, C., Forster, J., Smith, E., Elcoate, R., Spittlehouse, B., Johnson, J., Kennedy, D. 23 May 2023, In: Nutrients
• Acute cognitive performance and mood effects of coffee berry and apple extracts: A randomised, double blind, placebo controlled crossover study in healthy humans, Jackson, P., Haskell-Ramsay, C., Forster, J., Khan, J., Veasey, R., Kennedy, D., Wilson, A., Saunders, C., Wightman, E. 2 Nov 2022, In: Nutritional Neuroscience
• Mixed Tree Nuts, Cognition and Gut Microbiota: a 4-week, Placebo-Controlled, Randomized Crossover Trial in Healthy Non-Elderly Adults, Haskell-Ramsay, C., Dodd, F., Smith, D., Cuthbertson, L., Nelson, A., Lodge, J., Jackson, P. 1 Dec 2022, In: The Journal of Nutrition
• The chronic effects of a combination of herbal extracts (Euphytose®) on psychological mood state and response to a laboratory stressor: A randomised, placebo-controlled, double blind study in healthy humans., Dodd, F., Kennedy, D., Wightman, E., Khan, J., Patan, M., Elcoate, R., Jackson, P. Nov 2022, In: Journal of Psychopharmacology
• Differential Effects of DHA- and EPA-Rich Oils on Sleep in Healthy Young Adults: A Randomized Controlled Trial, Patan, M., Kennedy, D., Husberg, C., Hustvedt, S., Calder, P., Middleton, B., Khan, J., Forster, J., Jackson, P. 16 Jan 2021, In: Nutrients
• Effects of Saffron Extract Supplementation on Mood, Well-Being, and Response to a Psychosocial Stressor in Healthy Adults: A Randomized, Double-Blind, Parallel Group, Clinical Trial, Jackson, P., Forster, J., Khan, J., Pouchieu, C., Dubreuil, S., Gaudout, D., Moras, B., Pourtau, L., Joffre, F., Vaysse, C., Bertrand, K., Abrous, H., Vauzour, D., Brossaud, J., Corcuff, J., Capuron, L., Kennedy, D. 1 Feb 2021, In: Frontiers in Nutrition
• Supplementation with oil rich in eicosapentaenoic acid, but not in docosahexaenoic acid, improves global cognitive function in healthy, young adults: results from randomized controlled trials, Patan, M., Kennedy, D., Husberg, C., Hustvedt, S., Calder, P., Khan, J., Forster, J., Jackson, P. 1 Sep 2021, In: The American Journal of Clinical Nutrition
• The Acute and Chronic Cognitive Effects of a Sage Extract: A Randomized, Placebo Controlled Study in Healthy Humans, Wightman, E., Jackson, P., Spittlehouse, B., Heffernan, T., Guillemet, D., Kennedy, D. 14 Jan 2021, In: Nutrients
• Acute and Chronic Effects of Green Oat (Avena sativa) Extract on Cognitive Function and Mood during a Laboratory Stressor in Healthy Adults: A Randomised, Double-Blind, Placebo-Controlled Study in Healthy Humans, Kennedy, D., Bonnländer, B., Lang, S., Pischel, I., Forster, J., Khan, J., Jackson, P., Wightman, E. 29 May 2020, In: Nutrients

• Ben Hughes Investigation on the acute and chronic effects of Nepalese Pepper (Zanthoxylum armatum DC) on cognitive function, mood and gaming performance in young, healthy, male gamers Start Date: 01/06/2024
• Michael Patan The effects of bioavailable omega-3 polyunsaturated fatty acids, delivered at bedtime, on brain function, sleep, cognition and mood in healthy adults Start Date: 01/03/2016 End Date: 18/03/2020
• Jessica Greener Investigating the Effects of Dietary Phospholipids on Measures of Human Brain Health and Psychobiological Wellbeing Start Date: 01/03/2023

• Psychology PhD June 10 2010
• Psychology BSc (Hons) July 18 2003