Health
Traditional East African Diet Found to Lower Inflammation and Boost Health, Study Finds
A recent study published in the journal Nature Medicine has highlighted the potential health benefits of a traditional East African diet, suggesting it could be as beneficial as the well-known Mediterranean diet in reducing inflammation and improving metabolic health.
The study, conducted by an international team of researchers, focused on the Chagga people of northern Tanzania, who live near Mount Kilimanjaro. Their diet, rich in plant-based foods, whole grains, beans, and leafy green vegetables, was found to have notable health advantages over the Western-style diet increasingly common in urban areas.
Over a two-week trial, researchers asked 77 adult men to change their eating habits. Rural participants who typically followed a traditional diet switched to Western foods, including processed meats, white bread, and fried chicken. Conversely, town dwellers who consumed more Western foods either adopted a traditional Chagga diet for two weeks or added a fermented banana drink known as Mbege to their regular diet for one week.
The research team tracked changes in participants’ blood inflammation markers and gut microbiomes — key indicators of immune and metabolic health. The results showed that switching from the traditional to the Western diet led to increased inflammation, a known risk factor for chronic diseases such as heart disease, type 2 diabetes, and autoimmune conditions.
However, those who adopted the Chagga diet or consumed Mbege saw a marked reduction in inflammation, with some improvements still evident even a month after the dietary change. According to lead researcher Dr. Quirijn de Mast of Radboud University Medical Centre in the Netherlands, the persistence of these benefits was “quite unexpected.”
“It’s probably not one thing,” said Dr. de Mast. “I think it’s the entire diet,” echoing sentiments similar to those associated with the Mediterranean diet, which is celebrated for its holistic approach to healthy eating.
Mbege, the traditional banana-based drink, also caught researchers’ attention. While its fermentation process appears to introduce beneficial microbes and compounds for gut health, experts caution about its alcohol content and the potential for contamination. Still, Dr. de Mast recommends incorporating more fermented foods in general for similar benefits.
The study raises broader questions about the future of heritage diets across sub-Saharan Africa, especially as rapid urbanization and shifting lifestyles lead to increased obesity and lifestyle-related diseases. With over 100 distinct tribes in Tanzania alone, each with unique dietary practices, researchers are calling for more region-specific studies to better understand the health implications of traditional African diets.
“These heritage diets and their diversity really deserve more attention before they disappear,” Dr. de Mast emphasized. “I think we can really learn a lot from them.”
Health
Global Mental Health Cases Near 1.2 Billion as Anxiety and Depression Drive Sharp Worldwide Rise
A major global analysis has found that mental health conditions have surged to an estimated 1.2 billion people worldwide, driven largely by steep increases in anxiety and depression over the past three decades.
The findings, published in The Lancet as part of the Global Burden of Disease Study 2023, show that the number of people living with mental disorders has almost doubled since 1990, marking a 95% rise. Researchers say major depressive disorder and anxiety disorders have seen even sharper growth, increasing by 131% and 158% respectively, making them the most prevalent mental health conditions globally.
The report describes mental illnesses as widespread conditions that create long-term disability and significant human suffering. It also highlights broader consequences for economies and public services, including reduced productivity, lower workforce participation and increasing pressure on health and welfare systems.
Researchers estimate that in 2023 alone, around 620 million females and 552 million males were affected by mental health conditions. While the overall burden is rising across both sexes, the study points to notable differences in the types and prevalence of disorders.
Among women, depression and anxiety were the most commonly reported conditions, alongside higher rates of eating disorders such as anorexia nervosa and bulimia nervosa. The report links this disparity to a mix of biological, social and structural factors, including exposure to domestic violence, sexual abuse, gender inequality and reproductive health-related changes.
In contrast, neurodevelopmental and behavioural disorders, including attention deficit hyperactivity disorder (ADHD), conduct disorder and autism spectrum conditions, were more frequently diagnosed in men.
Teenagers aged 15 to 19 were identified as the group experiencing the highest mental health burden globally, raising concerns about early onset of conditions and insufficient preventive care for young people.
The study identifies several key risk factors associated with mental illness, including childhood sexual violence, bullying and intimate partner violence. These factors are strongly linked to conditions such as depression, schizophrenia, bipolar disorder and anxiety disorders. However, researchers note that such exposures have remained relatively stable over time and account for only a portion of the overall rise.
According to the authors, broader drivers are likely contributing to the increasing prevalence of mental disorders. These include genetic and biological influences, poverty, inequality, and the growing impact of global crises such as armed conflict, pandemics, natural disasters and climate-related stress.
While mental health conditions have long been a leading cause of disability worldwide, the report warns that the situation is worsening. At the same time, health systems have not expanded services at a pace matching demand.
The authors caution that the gap between rising need and limited access to care is becoming more pronounced, leaving millions without adequate treatment or support.
Health
Europe Records Sharp Rise in Sexually Transmitted Infections, ECDC Warns
Health
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