{"id":1227,"date":"2025-12-16T08:52:01","date_gmt":"2025-12-16T07:52:01","guid":{"rendered":"https:\/\/www.nutrimedia.info\/?post_type=news&p=1227"},"modified":"2025-11-28T21:13:04","modified_gmt":"2025-11-28T20:13:04","slug":"anti-ageing-coffee-4-cups-the-optimal-dose","status":"publish","type":"news","link":"https:\/\/www.nutrimedia.info\/en\/news\/cafe-anti-age-4-tasses-le-dosage-optimal\/","title":{"rendered":"Anti-ageing coffee: 4 cups, the optimum dose?"},"content":{"rendered":"

Three to four cups of coffee a day are associated with longer telomeres - the equivalent of 5 years of cellular youth. This is the message sent by a study published at the end of November 2025 in BMJ Mental Health<\/em>, conducted on 436 patients suffering from severe psychiatric disorders. Correlation, not causation: the authors remain cautious. But the inverted J curve observed (maximum benefit at 3-4 cups, effect neutralised beyond 5) converges with other data on coffee polyphenols and oxidative stress.<\/strong><\/p>\n\n\n\n

The coffee that rejuvenates your cells (well, almost)<\/strong><\/h2>\n\n\n\n

Good news for espresso lovers: your morning ritual could do more than just wake you up. A study published at the end of November 2025 in BMJ Mental Health<\/em> suggests that drinking 3 to 4 cups of coffee a day is associated with longer telomeres - the equivalent of around 5 years of \u00abbiological youth\u00bb - in patients with severe psychiatric disorders.<\/p>\n\n\n\n

Before turning your coffee machine into a fountain of youth, let's be clear from the outset: this is a correlation observed in a specific population, not proof of causality. But for B2B players in coffee ingredients and functional solutions, this data opens up serious strategic prospects in the ageing<\/a> and mental health.<\/p>\n\n\n\n

What the BMJ Mental Health study reveals<\/strong><\/h2>\n\n\n\n

The study was based on the Norwegian TOP cohort and analysed 436 participants: 259 patients with schizophrenia and 177 with severe affective disorders (bipolarity, major psychotic depression). Leukocyte telomere length - a recognised biomarker of biological ageing - was measured by qPCR and cross-referenced with coffee drinking habits.<\/p>\n\n\n\n

Key results:<\/strong><\/p>\n\n\n\n

The relationship follows an inverted J curve. The maximum benefit appears at 3-4 cups a day, with telomeres significantly longer than in non-consumers. Beyond 5 cups a day, this advantage disappears - suggesting that that an excess of caffeine and related compounds could generate counterproductive oxidative stress.<\/strong><\/p>\n\n\n\n

This observation is in line with the recommendations of the FDA and the NHS, which set a ceiling of 400 mg of caffeine per day for a healthy adult, equivalent to around 4 cups of filter coffee.<\/p>\n\n\n\n

Why is this population relevant?<\/strong> People suffering from serious mental disorders have a life expectancy reduced by 10 to 15 years on average, partly as a result of accelerated cellular ageing. A simple nutritional lever such as coffee is therefore becoming a subject of major interest - and a promising area of research for extrapolation to other populations.<\/p>\n\n\n\n

Polyphenols, inflammation, telomeres: the mechanics under the coffee maker<\/strong><\/h2>\n\n\n\n
\"Polyphenols,<\/figure>\n\n\n\n

The most plausible biological link involves modulation of oxidative stress and systemic inflammation - two major accelerators of telomere shortening.<\/p>\n\n\n\n

Coffee is not just a vehicle for caffeine. It is a complex cocktail of bioactive compounds: polyphenols (particularly chlorogenic acids), diterpenes, trigonelline.<\/strong> These molecules are involved in key pathways in the response to oxidative stress, inflammatory signalling and cellular metabolism.<\/p>\n\n\n\n

Recent reviews also confirm this mechanistic convergence: the same compounds explain the hepatoprotective effects of coffee (reduction in fibrosis, improved insulin sensitivity, modulation of the microbiota<\/a>). This consistency between cell ageing, liver health and inflammation reinforces the scientific legitimacy of a \u00abcoffee as a health ingredient\u00bb positioning that goes beyond the simple stimulant effect.<\/p>\n\n\n\n

The limits of this research<\/strong><\/h2>\n\n\n\n

The study is observational<\/strong> and focuses on a specific population (severe psychiatric disorders). It does not allow us to state that coffee causally \u00abrejuvenates\u00bb cells. Coffee consumption was self-reported, with no details of the type of coffee, method of preparation or exact caffeine content.<\/p>\n\n\n\n

The experts also point out that it is not yet known which compounds contribute most to this effect, and whether decaffeinated or enriched formulations would reproduce this profile.<\/p>\n\n\n\n

In practice:<\/strong> focus on promises such as \u00absupport for antioxidant mechanisms\u00bb or \u00abhelping to protect cells against oxidative stress\u00bb, rather than direct claims about \u00abbiological rejuvenation\u00bb.<\/p>\n\n\n\n

FAQ: everything you need to know about coffee and cell ageing<\/strong><\/h2>\n\n\n\n

Does coffee really rejuvenate cells?<\/strong> The study shows an association, not a causality. Longer telomeres were observed in moderate consumers, but it cannot be said that coffee \u00abreverses\u00bb ageing. What is established is that coffee provides antioxidant compounds that help to protect cells.<\/p>\n\n\n\n

Why does the effect disappear after 4 cups?<\/strong> The inverted J curve suggests that an excess of caffeine could generate compensatory oxidative stress. This is consistent with recommendations to limit caffeine intake to 400 mg\/day in healthy adults.<\/p>\n\n\n\n

Can these results be applied to the general population?<\/strong> The study focuses on psychiatric patients, but other epidemiological studies have already shown, in the general population, an association between moderate coffee consumption and a reduction in mortality, cardiovascular disease and liver disease. The convergence of the data is encouraging.<\/p>\n\n\n\n

What claims can be used in Europe?<\/strong> The regulatory framework remains strict. Favour authorised generic claims for polyphenols and protection against oxidative stress. Avoid any extrapolation towards non-validated \u00abrejuvenation\u00bb claims.<\/p>\n\n\n\n

Sources<\/strong><\/h2>\n\n\n\n
    \n
  1. Mlakar V. et al, \u00abCoffee intake is associated with telomere length in severe mental disorders\u00bb, BMJ Mental Health<\/em>, 2025. PubMed<\/a><\/li>\n\n\n\n
  2. King's College London, press release, 25 November 2025. KCL News<\/a><\/li>\n\n\n\n
  3. Science Media Centre, expert feedback, 2025. SMC<\/a><\/li>\n\n\n\n
  4. Review \u00abCoffee for the liver: a mechanistic approach\u00bb, Biochemical Pharmacology<\/em>, 2025. ScienceDirect<\/a><\/li>\n<\/ol>","protected":false},"template":"","meta":{"_acf_changed":true,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false},"class_list":["post-1227","news","type-news","status-publish","hentry"],"acf":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.nutrimedia.info\/en\/wp-json\/wp\/v2\/news\/1227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nutrimedia.info\/en\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.nutrimedia.info\/en\/wp-json\/wp\/v2\/types\/news"}],"wp:attachment":[{"href":"https:\/\/www.nutrimedia.info\/en\/wp-json\/wp\/v2\/media?parent=1227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}