What the World's Longest-Living People Drink Every Single Day
Researchers who study the world's longest-lived people found a surprisingly simple pattern in what they drink each day.
You might assume that living past 100 requires some expensive supplement stack or a complicated health protocol. But researchers studying Blue Zones — the five regions of the world where people consistently live the longest — found that what centenarians drink every day is remarkably simple. Here's what they reach for, and why it may matter more than you think.
What Are Blue Zones, Exactly?
Blue Zones is a term coined by author and National Geographic Fellow Dan Buettner, who worked with demographers and researchers to identify five regions with unusually high concentrations of people living into their 90s and beyond: Sardinia, Italy; Okinawa, Japan; Loma Linda, California; Ikaria, Greece; and Nicoya, Costa Rica.
Researchers studied the daily habits — including diet, movement, social life, and yes, beverages — of these populations to find common patterns. The drink findings are part of a broader body of observational research, which means they show associations, not direct cause and effect. But the patterns are consistent enough to be worth paying attention to.
Drink One: Water (More Than You Think They'd Need to Be Told)
Across all five Blue Zones, drinking plain water throughout the day is a consistent habit. This sounds almost too obvious, but many adults — especially those over 50 — chronically under-drink water. The thirst sensation naturally weakens with age, which means dehydration can creep up without obvious warning signs.
Adequate hydration is linked to better kidney function, joint health, digestion, and cognitive clarity. Seventh-day Adventists in Loma Linda, one of the Blue Zone populations, were specifically noted for prioritizing water over sugary drinks. Researchers observed that centenarians in these communities rarely drank sodas or heavily sweetened beverages.
There's no universal prescription for exactly how much water to drink — needs vary by body size, activity level, and climate — but keeping a glass of water nearby throughout the day is a habit that costs nothing.
Drink Two: Coffee
Here's something that may surprise you. Coffee shows up regularly in the daily routines of centenarians in Sardinia, Ikaria, and Nicoya. And the research behind it has grown substantially in recent years.
Multiple large observational studies have linked moderate coffee consumption — typically defined as two to three cups per day — to lower rates of type 2 diabetes, Parkinson's disease, certain liver conditions, and cardiovascular events. A landmark review published in The BMJ in 2017 that analyzed over 200 meta-analyses found that three to four cups per day was associated with the greatest risk reduction across several chronic diseases, though researchers noted that evidence was mostly observational.
Coffee is one of the richest dietary sources of antioxidants in the Western diet, which may help explain some of the associations researchers have found. Blue Zone centenarians typically drink their coffee black or with just a small amount of milk — not loaded with sugar and flavored syrups.
If you already drink coffee and tolerate it well, this is reassuring news. If you have heart rhythm issues, anxiety, or trouble sleeping, talk with your doctor about what amount, if any, is appropriate for you.
Drink Three: Red Wine (in Very Specific Amounts)
This one comes with the most important caveats, so read carefully. In Sardinia and Ikaria in particular, researchers documented that centenarians — especially men — regularly drink small amounts of locally produced red wine, typically one to two small glasses per day, almost always with food and in the company of others.
Sardinian Cannonau wine has been found to have particularly high levels of polyphenols, plant compounds with antioxidant properties, compared to many other red wines. Researchers have noted this as a potentially relevant factor, though it doesn't isolate wine as the cause of longevity.
This is where context is everything. The Blue Zone pattern is not about drinking alcohol for health. It's about a moderate, social, food-paired ritual that is embedded in a broader lifestyle of low stress, strong community, and a whole-food diet. Drinking one glass of wine with Sunday dinner is a very different thing from drinking to cope with stress or drinking heavily during the week.
Current public health guidance, including from the American Cancer Society, has moved toward recommending that people who don't drink not start for any perceived health benefit, given the established links between alcohol and certain cancers. If you don't currently drink, this finding is not a reason to start. If you do drink moderately and your doctor says it's fine, the Blue Zone pattern suggests keeping it to small amounts with meals.
What These Three Drinks Have in Common
Notice what's missing from this list: energy drinks, sodas, sugary juices, and heavily processed protein shakes. Blue Zone centenarians aren't reaching for beverages engineered for flavor or stimulation. Their drinks are simple, minimally processed, and consumed in reasonable amounts as part of a social, unhurried daily rhythm.
The broader lesson from Blue Zone research is that no single food or drink is the magic key. These beverages show up within a larger lifestyle pattern that includes mostly plant-based eating, regular low-intensity movement, strong community bonds, and a sense of purpose. The drinks are part of the picture, not the whole painting.
Practical Steps You Can Take Today
- Keep a glass of water on your desk, nightstand, or kitchen counter as a visual reminder to drink throughout the day.
- If you drink coffee, enjoy it without loading it up with sugar. Black or with a small splash of milk is closer to the Blue Zone pattern.
- If you drink alcohol, talk with your doctor about what amount is appropriate for your health history. If you don't drink, don't start based on this research alone.
- Think about how you consume your beverages. Are you gulping coffee at your desk alone, or pausing to enjoy it? The social and mindful aspects of Blue Zone drinking habits matter too.
The Bottom Line
Centenarians in Blue Zones reach for water, coffee, and small amounts of red wine — not because they're following a health trend, but because these have been woven into their daily routines for generations. The research linking these habits to longevity is observational and can't prove cause and effect, but the pattern is consistent and worth taking seriously. Start with the simplest step: drink more water today, and pay attention to what you're sipping the rest of the time.
