nutrition

Alcohol is the world's most widely used recreational depressant. Here's what it actually does — from your first sip to the morning after.

You're not weak-willed. You're running ancient survival software in a world that has figured out exactly how to exploit it.

Fermentation is controlled microbial metabolism — ancient biotechnology that transforms raw ingredients into foods more nutritious, flavorful, and shelf-stable than the originals.

589 million adults now have diabetes — 1 in 9 globally. China has 148 million cases, the most of any country. Pakistan's age-standardised prevalence rate of 31.4% means nearly 1 in 3 adults is diabetic. The IDF's 2025 Atlas projects 853 million by 2050. Here is the full country-by-country breakdown and what drives these numbers.

40% of cancers are preventable through lifestyle changes. Tobacco causes 30% of all cancer deaths. Obesity is the second leading preventable cause. Here is what the evidence actually shows about reducing cancer risk.

Nauru has a 61% obesity rate — the highest in the world. Pacific Island nations dominate the top of the global obesity rankings. More than 1 billion people worldwide are now classified as obese, and rates are rising fastest in low- and middle-income countries. Here are the data and the reasons.

Vitamin D clearly prevents rickets, yet large trials of extra vitamin D in healthy adults keep coming back flat. Here is how that paradox arises and what the evidence supports.

Sugar has been blamed for everything from obesity to cancer to Alzheimer's. The reality is more nuanced — quantity, source, and context all matter. Here's what nutrition science actually shows.

Intermittent fasting works for some people for some reasons. Here's the actual research on what it does, what it doesn't, and how it compares to ordinary calorie restriction.

Caffeine is the world's most consumed psychoactive drug. It boosts alertness, has real health benefits, and is dangerous in excess. Here's the science of caffeine and how much you can safely drink.

The fitness industry says you need 1g per pound of body weight. Public health agencies recommend much less. Here's what the actual evidence says about protein requirements.