There are many benefits of following a Paleo Diet.1,2,3,4,5,6 The majority are aware of the physical effects of moving from a Western diet (full of processed foods, grains and sugar) to a Paleo Diet (rich with nutrients, anti-inflammatory fats, and healthy sources of carbohydrates).7,8 However, most are likely unaware of the effects of diet on dopamine levels, and your brain.9,10,11,12,13 Numerous studies have examined the relationship, and all of the studies have fairly interesting results.14,15,16,17,18 One study showed mice fed a high fat diet during pregnancy had an increased preference for sucrose and fat.19 It must be noted, however, that what researchers refer to as a ‘high fat diet’ is instead a ‘high sugar and high fat diet.’20,21,22 On top of this, the diet consisted of poor sources of sugar and fat, not sweet potatoes and coconut oil.23
More interesting, however, researchers ultimately found that diet actually altered the gene expression of dopamine and opioid-related genes.24 That is a pretty big find. Another study looked at the effect skipping breakfast had on dopamine levels.25 The authors of this study found breakfasts consumed with normal to higher amounts of protein, had increasingly positive effects on both dopamine secretion and reduced food cravings.
If you’re having a hard time swallowing the idea that diet alters dopamine levels, this was only first “discovered” by researchers in 2003.26 Other researchers have stated that excessive intake of dietary fats leads to diminished brain dopaminergic function.27,28,29,30 What must be noted here, again, is that they are not referring to healthier fats, but rather poor quality ones. By contrast, one can extrapolate that healthy fats (such as those included regularly in a Paleo Diet) will improve, or at the very least normalize, dopamine levels.31,32,33
As other researchers have also noted, sugar and fat bingeing have notable differences in addictive-like behavior.34 This, again, suggests we should avoid a Western diet at all costs, especially the unhealthiest versions, if you want to maximize dopaminergic function in the brain. Researchers have also found that the lack of opiate-like withdrawal signs after fat bingeing underscores the importance of opioid systems in differentiating sugars and fats and their subsequent effects on behavior.
While fat may not have the same effects on the brain as sugar,combining the two in one’s diet (especially in their worst forms) is akin to putting your brain in the freezer, or maybe even throwing it out in front of traffic.35,36,37 Healthy fats, like the omega-3 fatty acids found in abundance in a Paleo Diet, will help to maximize dopamine levels, as well as neuronal and physiologic functioning.38,39,40,41,42
In summary, proper dopamine levels are vital to leading a healthy life. A Paleo diet helps to optimize dopaminergic and neuronal health, meanwhile providing the multitude of healthful benefits. Check out the brand new The Real Paleo Diet Cookbook and check out over 250 delicious, healthy recipes that will help fuel your brain!
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 Cordain L, Eaton SB, Sebastian A, et al. Origins and evolution of the Western diet: health implications for the 21st century. Am J Clin Nutr. 2005;81(2):341-54.
 Gutiérrez-fisac JL, Angel royo-bordonada M, Rodríguez-artalejo F. [Health-risks associated with Western diet and sedentariness: the obesity epidemia]. Gac Sanit. 2006;20 Suppl 1:48-54.
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 Wang GJ, Volkow ND, Thanos PK, Fowler JS. Imaging of brain dopamine pathways: implications for understanding obesity. J Addict Med. 2009;3(1):8-18.
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 Batterham RL, Ffytche DH, Rosenthal JM, et al. PYY modulation of cortical and hypothalamic brain areas predicts feeding behaviour in humans. Nature. 2007;450(7166):106-9.
 Dallman MF, Pecoraro N, Akana SF, et al. Chronic stress and obesity: a new view of “comfort food”. Proc Natl Acad Sci USA. 2003;100(20):11696-701.
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 Liang NC, Hajnal A, Norgren R. Sham feeding corn oil increases accumbens dopamine in the rat. Am J Physiol Regul Integr Comp Physiol. 2006;291(5):R1236-9.
 Avena NM, Rada P, Hoebel BG. Evidence for sugar addiction: behavioral and neurochemical effects of intermittent, excessive sugar intake. Neurosci Biobehav Rev. 2008;32(1):20-39.
 Vucetic Z, Kimmel J, Totoki K, Hollenbeck E, Reyes TM. Maternal high-fat diet alters methylation and gene expression of dopamine and opioid-related genes. Endocrinology. 2010;151(10):4756-64.
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 Molteni R, Barnard RJ, Ying Z, Roberts CK, Gómez-pinilla F. A high-fat, refined sugar diet reduces hippocampal brain-derived neurotrophic factor, neuronal plasticity, and learning. Neuroscience. 2002;112(4):803-14.
 Kuo LE, Czarnecka M, Kitlinska JB, Tilan JU, Kvetnanský R, Zukowska Z. Chronic stress, combined with a high-fat/high-sugar diet, shifts sympathetic signaling toward neuropeptide Y and leads to obesity and the metabolic syndrome. Ann N Y Acad Sci. 2008;1148:232-7.
 Axen KV, Dikeakos A, Sclafani A. High dietary fat promotes syndrome X in nonobese rats. J Nutr. 2003;133(7):2244-9.
 High-fat diet alters the dopamine and opioid systems: effects across development. International Journal of Obesity Supplements. 2012;:S25.
 Hoertel HA, Will MJ, Leidy HJ. A randomized crossover, pilot study examining the effects of a normal protein vs. high protein breakfast on food cravings and reward signals in overweight/obese “breakfast skipping”, late-adolescent girls. Nutr J. 2014;13(1):80.
 Montgomery AJ, Mctavish SF, Cowen PJ, Grasby PM. Reduction of brain dopamine concentration with dietary tyrosine plus phenylalanine depletion: an [11C]raclopride PET study. Am J Psychiatry. 2003;160(10):1887-9.
 Tellez LA, Medina S, Han W, et al. A gut lipid messenger links excess dietary fat to dopamine deficiency. Science. 2013;341(6147):800-2.
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 Wang GJ, Volkow ND, Logan J, et al. Brain dopamine and obesity. Lancet. 2001;357(9253):354-7.
 Thanos PK, Michaelides M, Piyis YK, Wang GJ, Volkow ND. Food restriction markedly increases dopamine D2 receptor (D2R) in a rat model of obesity as assessed with in-vivo muPET imaging ([11C] raclopride) and in-vitro ([3H] spiperone) autoradiography. Synapse. 2008;62(1):50-61.
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