Biological age reflects how old your cells appear to be and is linked to the risk of conditions such as cancer and cardiovascular disease.\u00a0\n<\/p>\n
Theobromine has been shown to help improve blood pressure and inflammation, and it seems reasonable that this compound would have an association with positive biological aging markers, according to Megan Wroe, MS, RD, CNE<\/a>, a wellness manager and registered dietitian at the Wellness Center at Providence St. Jude Medical Center, who was not involved with the study.\n<\/p>\n However, more research is needed to better understand the connection. The study only shows an association and does not prove that eating dark chocolate will slow biological aging.<\/p>\n Antioxidants in Dark Chocolate Promote Healthy Aging <\/p>\n Beyond theobromine, dark chocolate<\/a> contains other health-promoting nutrients, including iron, zinc, magnesium, and antioxidants.\n<\/p>\n Cocoa is especially rich in polyphenols and flavanols<\/a>, two antioxidants that may help lower the risk of cancer and cardiovascular disease. Dark chocolate has about five times as many of these compounds as milk or white chocolate.\n<\/p>\n To get a meaningful amount of these antioxidants, choose dark chocolate with at least 70% cocoa<\/a>, Wroe said. “Dark chocolate is not the only source of antioxidants and flavanols. If you are someone who does not enjoy dark chocolate, do not feel that you have to make the switch,” she added.\n<\/p>\n Tea and colorful plant foods, like plums, strawberries, grapes, and blueberries, also provide flavanols found in cocoa.\n<\/p>\n Dark Chocolate Plays a Role in Brain Health <\/p>\n Antioxidants in dark chocolate may support brain health<\/a>, stimulate cognitive function<\/a>, and reduce Alzheimer’s disease risk. A 2022 study found that 85% dark chocolate offers prebiotic effects and may help improve mood via the gut-brain axis<\/a>. Another study linked 72% dark chocolate with improved fatigue and brain health.\n<\/p>\n Small amounts of dark chocolate provide important antioxidants and support circulation, making it a good choice for healthy aging for some people, according to Jen Bruning, MS, RDN, LDN<\/a>, a Chicago-based registered dietitian and spokesperson for the Academy of Nutrition and Dietetics.<\/p>\n Enjoy One Ounce of Dark Chocolate as a Sweet Treat <\/p>\n If you want to enjoy dark chocolate for health benefits, try not to over-indulge.\n<\/p>\n “One-half to one ounce makes for a nice sweet treat after a meal or with a more substantial snack.\u00a0Because dark chocolate is so rich in flavor, a smaller serving can be really satisfying while also keeping the fat and total calories in check,” Bruning said.\n<\/p>\n One ounce of 85% dark chocolate contains about 170 calories and 14 grams of fat.\n<\/p>\n “This is one of those ‘more is not necessarily better’ things,” Bruning said. “Too much, too often, and it can lead to stomach upset, unwanted weight gain, or losing out on other nutrients because you\u2019re eating so much of one food and not enough of another.”\n<\/p>\n Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process<\/a> to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.<\/p>\n Samanta S, Sarkar T, Chakraborty R, et al. Dark chocolate: an overview of its biological activity, processing, and fortification approaches<\/a>.\u00a0Curr Res Food Sci. 2022;5:1916-1943. doi:10.1016\/j.crfs.2022.10.017<\/p>\n Johns Hopkins Medicine. The benefits of having a healthy relationship with chocolate<\/a>.<\/p>\n Saad R, Costeira R, Mat\u00edas-Garc\u00eda PR, et al. Theobromine is associated with slower epigenetic ageing<\/a>.\u00a0Aging. 2025;17(12):2902-2915. doi:10.18632\/aging.206344<\/p>\n Harvard T.H. Chan School of Public Health. The Nutrition Source. Dark chocolate<\/a>.<\/p>\n Harvard Health Publishing. Eating diverse flavonoid foods may provide extra health protection<\/a>.<\/p>\n Shin JH, Kim CS, Cha J, et al. Consumption of 85% cocoa dark chocolate improves mood in association with gut microbial changes in healthy adults: a randomized controlled trial<\/a>.\u00a0J Nutr Biochem. 2022;99:108854. doi:10.1016\/j.jnutbio.2021.108854<\/p>\n Nemoto K, Kokubun K, Ogata Y, Koike Y, Arai T, Yamakawa Y. Dark chocolate intake may reduce fatigue and mediate cognitive function and gray matter volume in healthy middle-aged adults<\/a>. Behav Neurol. 2022;2022:1-8. doi:10.1155\/2022\/6021811<\/p>\n U.S. Department of Agriculture. 85% c dark chocolate<\/a>.<\/p>\n![\"Stephanie](\"https:\/\/www.newsbeep.com\/ie\/wp-content\/uploads\/2025\/09\/StephanieBrownnewheadshot-e5ca9ba2a404491384e9300a7871f190.jpg\")
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