Vitamins A, D, E, and K are called fat-soluble because they dissolve in fat rather than water. This means the amount of fat you eat with these vitamins directly determines how well your body absorbs them — a fact that makes low-fat diets a potential risk for certain deficiencies.
Gram for gram, the saturated fat in cheddar and the saturated fat in butter are close to identical. Fed to people in controlled trials, they produce measurably different LDL cholesterol. The explanation is the food matrix, and it is the most misused idea in the 2026 fat debate.
Few oils have generated as much controversy as coconut oil. Praised by some as a metabolism-boosting superfood and condemned by others as a cardiovascular risk, the truth sits somewhere in the middle — and the science is more nuanced than the headlines suggest.
Current guidelines recommend 20 to 35 percent of calories from fat for most adults. Within that range, the type of fat matters more than the exact quantity.
The FDA's 2018 ban on partially hydrogenated oils removed the primary source of industrial trans fats from the US food supply. But naturally occurring trans fats persist, and labeling rules allow trace amounts to be hidden.
Nuts and seeds are among the most nutrient-dense sources of healthy fats, but they vary significantly in fatty acid composition. Here is how the most common options compare.
Dietary fat is the raw material for sex hormones, stress hormones, and fat-soluble vitamins. Inadequate fat intake disrupts hormonal health in ways that affect energy, reproduction, and metabolism.
Both avocado oil and olive oil are predominantly monounsaturated fat, but they differ in smoke point, antioxidant profile, flavor, and best cooking applications. Here is how they compare.
Medium-chain triglycerides are metabolized differently from other fats, bypassing normal fat digestion to reach the liver rapidly. The research on their practical benefits is more modest than the marketing.
Online discourse has painted seed oils as a primary driver of chronic disease. The scientific literature paints a more complex picture that deserves careful examination.
For decades, we were told that eating fat makes you fat. The logic seemed obvious — but it was wrong. Here's how fat storage actually works and why dietary fat is an essential part of a healthy diet.
With dozens of cooking oils on the market, choosing the right one can be confusing. This comparison breaks down the most popular options by smoke point, fat composition, flavor, and best culinary uses.
