Butter and margarine look similar but their chemistry changes everything
The battle between butter and margarine comes down to chemistry. Butter's naturally occurring fats create rich flavors, golden browning, and flaky baked goods, while margarine's modified plant oils offer consistency and a longer shelf life. Although both contain mostly fat, their different structure...
Researchers discover why fructose doesn't satisfy hunger like glucose
A new study found that fructose and glucose may look the same on a nutrition label, but the brain treats them very differently. In mice, glucose strongly reduced activity in hunger-promoting brain cells, while fructose had a much weaker effect. High-fructose corn syrup triggered a stronger response ...
This common vitamin deficiency can mimic normal aging
Vitamin B12 is needed in microscopic amounts, but a shortage can have major effects on health and energy. The vitamin was first linked to a lifesaving liver treatment for pernicious anemia nearly 100 years ago. Today, researchers are finding that B12 may also help keep cellular powerhouses called mi...
They knew the pill was fake but their memory still improved
Healthy older adults experienced measurable improvements in memory, physical performance, and stress after taking placebo pills for just three weeks. The most surprising finding was that the placebo often worked even when participants knew the pills were completely inactive.
Osteopenia is silently weakening bones in millions of people
Osteopenia is a common but often overlooked condition that causes bones to become less dense and more fragile. Because it develops silently, many people only discover they have it after a fracture or bone scan. Aging, menopause, poor diet, and inactivity can all contribute to bone loss. Fortunately,...
Study challenges a common belief about vitamin D and sunlight
A study of nearly 300 people across northern Britain found that vitamin D levels often stay low all year in groups most at risk. Surprisingly, summer sunshine did not significantly boost vitamin D levels among older adults or people from minoritized ethnic backgrounds.
The tea in your kombucha changes more than just the taste
Scientists discovered that kombucha's flavor, chemistry, and antioxidant activity vary dramatically depending on the tea used to make it. Green and oolong tea kombuchas emerged as the most biologically active, while fermentation transformed each tea into a distinctly different beverage.
Scientists finally solved how H5N1 bird flu hid in dairy cows
Researchers uncovered why H5N1 bird flu attacks cows' udders instead of their lungs: the virus's preferred receptors are concentrated in mammary tissue. The breakthrough could help scientists predict future bird flu jumps and spot unusual infections before they spread widely.
Scientists say most people need more protein than current guidelines suggest
A new review suggests that doing more exercise and eating more protein than current minimum recommendations may help people stay stronger, sharper, and more independent as they age. The goal isn't building a beach body-it's extending healthspan and maintaining the ability to fully enjoy life for dec...
One common fat may fuel type 2 diabetes while another helps fight it
Not all fats affect your body the same way. Researchers found that palmitic acid, a saturated fat common in many foods, may contribute to insulin resistance and type 2 diabetes by triggering inflammation, toxic fat buildup, and cellular stress. In contrast, oleic acid-the heart-healthy fat abundant ...
Ozempic changed obesity treatment, but experts say the real revolution is next
The obesity treatment landscape is changing fast, with GLP-1 drugs opening the door to more effective care than ever before. Experts now envision a future where medications, minimally invasive procedures, surgery, and precision medicine work together to deliver better long-term results.
Think you're eating healthy? You may be missing this heart-protecting nutrient
Eating five servings of fruits and vegetables may not be enough if you're missing foods rich in flavanols, a group of compounds linked to better heart health. Researchers found that choices like blackberries, plums, apples, broad beans, cherries, and green tea can dramatically increase flavanol inta...
Researchers found 8 common food additives linked to high blood pressure and heart disease
A major study of more than 112,000 people found that eating foods containing common preservatives may be linked to a higher risk of high blood pressure and heart-related diseases. Researchers tracked participants for up to eight years and discovered that people consuming the highest amounts of certa...
Scientists say most of what's in your food is still a mystery
Scientists are beginning to explore a hidden world of thousands of food chemicals that go far beyond the nutrients listed on nutrition labels. This "nutritional dark matter" may hold the key to understanding disease risk, healthy aging, and why different diets affect people in dramatically different...
10 surprising ways diabetes and dementia are connected
Diabetes and dementia appear to be closely intertwined, with each condition potentially influencing the other. Problems with insulin and glucose can affect the brain's energy supply, increase inflammation, and damage blood vessels linked to memory loss. Researchers are also finding that some popular...
Millions take calcium and vitamin D for stronger bones. A major review finds little benefit
For years, calcium and vitamin D supplements have been promoted as a simple way for older adults to protect their bones and prevent falls. But a massive review of nearly 154,000 people found that calcium, vitamin D, or a combination of both provided little to no meaningful protection against fractur...
This popular brain supplement was linked to shorter lifespans in men
A large-scale study suggests that men with higher levels of the amino acid tyrosine may have shorter lifespans, potentially losing close to a year of life expectancy. The finding is especially intriguing because tyrosine is commonly associated with brain health and is often used in supplements aimed...
The secret behind smoother, better-tasting protein shakes
A new whey protein manufacturing technique could make protein shakes taste better and feel smoother in the mouth. Researchers traced unwanted bitterness to concentrated minerals and found a way to remove them without sacrificing the improved texture.
Scientists found a surprising problem with sugar-free diets
A surprising new study suggests that completely eliminating sugar may backfire. Mice on a sucrose-free low-fat diet showed worse blood sugar control, increased inflammation, disrupted gut bacteria, and signs of fatty liver compared with mice that consumed some sucrose. Researchers say the results hi...
Can fasting fight gum disease? Scientists find surprising link
A low-calorie fasting-style diet significantly reduced inflammation linked to gum disease in a small clinical study. The findings suggest that what people eat may influence gum health almost as much as what they do with a toothbrush.