A version of this post first appeared on Dr. Ayala’s Open Salon blog. Are most Americans lactose intolerant? Do all dairy products contain lactose? How critical is it to stick to a lactose-free diet?

Regretting that slice of pizza or double-scoop ice cream cone? If you’ve ever felt bloated, gassy or just plain unwell after a dish of ice cream or a meal laden with cheese, then you may well know the ...

This question originally appeared on Quora. Answer by Ti Zhao, biomedical engineer: Sort of. It’s somewhat complicated since there are genetic as well as environmental components to this. Natural ...

Lactose intolerance arises from a deficiency of lactase, an enzyme produced in the small intestine that is essential for breaking down lactose into glucose and galactose. When lactase levels are ...

70% of the global population is lactose intolerant, according to data from the Association of Lactose Intolerant People in Spain (Adilac). However, there is an exception: the peoples of Northern ...

So lactose intolerance can emerge later in life in individuals who were previously tolerant. Anyone suffering from lactose intolerance at any life stage, in addition to eating yogurt and aged, hard ...

What do pizza, milk shakes and ice cream have in common besides being delicious and being loaded with calories? Surprisingly, majority of the people on this planet find it difficult to digest these ...

Cheese is the ultimate comfort food — well, and ice cream, milk and butter. Is there anything these ingredients don’t make ...

Regretting that slice of pizza or double-scoop ice cream cone? If you've ever felt bloated, gassy or just plain unwell after a dish of ice cream or a meal laden with cheese, then you may well know the ...