Wise Folks

How a fiber-starved microbiome can nibble at your intestinal lining — and what to do before that becomes a health problem. The question your breakfast is already answering You do not have to feel sick for your gut microbes to be underfed. The average adult in the United States eats about 15 grams of fiber a day. Health guidelines still call for roughly 25 grams for women and 38 grams for men. Traditional diets studied by microbiome researchers often delivered far more. That gap matters because fiber is the main food source for a large share of the bacteria in your large intestine. When those bacteria cannot find enough microbiota-accessible carbohydrates, they look for the next carbohydrate-rich surface. In the colon, that surface is you: a living mucus layer meant to keep microbes a safe distance from your cells. Stanford microbiologist Erica Sonnenburg has said that without enough fiber, gut microbes “basically start eating you,” gnawing at the colon’s protective lining. The sc...

Aluminum foil is one of those kitchen staples almost everyone reaches for without thinking. Wrap leftovers, cover a baking dish, keep something warm—it feels practical and disposable. But not every food belongs in foil, and using it the wrong way can quietly create food-safety problems or ruin the flavor of what you’re trying to save. Food safety experts consistently flag two categories that deserve special caution: baked potatoes and acidic foods. Understanding why these two create issues helps you store leftovers more safely and keeps your food tasting the way it should. Why Aluminum Foil Isn’t Always Harmless for Storage Foil works well for short-term covering or cooking in many situations. The trouble starts when people use it for storage, especially with warm food or certain ingredients. Two main problems appear: It creates a low-oxygen environment when tightly wrapped. Acidic or salty foods can react with the metal, affecting taste and, in some cases, allowing small amounts...