Grace Holloway

About the author

Grace covers wellness, food and healthy habits, based on what the research says.

Coffee Calories Are Up Nearly 40% in 15 Years, and Creamer Is the Biggest Reason

A Tufts analysis of 30,000 U.S. adults found coffee calories rose from about 43 to 60 a day, with non-dairy creamer now the largest source of added calories. Here is what that does and does not tell us.

Late-Night Eating Linked to Higher Risk of Fatty Liver Disease and Cirrhosis in a Study of 199,000 Adults

People who regularly ate after dinner or after bedtime had a higher risk of fatty liver disease and cirrhosis in three large U.S. cohorts. Here’s what the study can and can’t tell you, and some low-risk habits to try.

Olive Oil Before Carbs Blunted Blood Sugar Spikes in Mice. Here’s What That Means for Your Plate

A Kyoto University study found fat eaten first slowed the stomach and tamped down early blood sugar rises in mice. Human evidence on meal order is still limited.

Coffee Drinkers Have a Different Gut Mix, a Small Study Finds. Decaf May Have Perks of Its Own

A small Irish study found regular coffee drinkers had distinct gut bacteria and metabolites, and that decaf and regular coffee may affect mood and memory differently.

Halloween Candy Without the Sugar Hangover: A Realistic Game Plan

Halloween falls on a Saturday this year, which means a weekend of treats. Here’s what current US guidance says about added sugar, plus simple, food-safe ways to enjoy the night without a weeklong candy binge.

How You Hold Your Arm Can Skew a Blood Pressure Reading by Nearly 7 Points

In a Johns Hopkins study, resting the arm on the lap or letting it hang raised blood pressure readings compared with a desk. Here’s how to measure at home the right way.

Dairy’s Natural Trans Fats Weren’t Linked to Heart Disease in a Review. Here’s the Fine Print

A review of 22 studies found no link between the trans fats that occur naturally in dairy and heart disease or diabetes. The work was funded by the dairy industry, and it has other limits worth knowing.

Signs of Brain Aging May Show Up Decades Early, and the Gut Could Be Part of the Story

A UCLA study of nearly 1,500 mostly healthy adults found that brains that looked “older” on scans went along with weaker memory scores and, in one group, a different gut chemistry. It’s an early, observational finding.

Couples Who Exercise Report Better Communication. Doing It Together May Add a Little More

A survey of nearly 1,700 young married couples links regular exercise with better communication and less conflict. Working out together looked slightly better, but the edge was small.

A 20-Minute Walk Got the Gut Moving Within Minutes in a Small Study

In a small Japanese study, a 20-minute walk nearly doubled bowel sound activity within a couple of minutes. It’s a tiny study, but it fits long-standing advice on staying regular.

Common Food Preservatives Linked to Higher Blood Pressure Risk in a Large Study

A study of more than 112,000 French adults linked higher intake of some everyday preservatives to more high blood pressure. Here’s what it found, and what it can’t tell us.

The MIND Diet Is Linked to Brains That Age 2.5 Years Slower

A 12-year study of more than 1,600 adults found that people who ate more like the MIND diet lost brain tissue more slowly.

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