Low-fat and low-carb diets tie when calories match
Weight change tracks energy intake more than which macronutrient you cut. Trials comparing low-fat, low-carb, and similar calorie-reduced plans find no clear winner—long-term sticking does. The first mass-market pitch, though, was undertaker William Banting’s 1863 low-starch pamphlet.
Dieting means regulating food to lose, gain, or hold weight, or to manage illnesses such as diabetes and obesity. Greek diaita once meant a whole healthy way of life, not a crash menu. Nearly half of American adults try to lose weight this way, including about two-thirds of those with obesity and more than a quarter of people already at normal or low weight—groups that may face higher mortality when they diet. Guidelines often reserve weight-loss dieting for people with weight-related disease, not for the healthy. Regain is common; adherence predicts success better than brand names. By 2014, estimates counted over a thousand weight-loss schemes.
George Cheyne urged milk, vegetables, exercise, and less luxury food in his 1724 Essay of Health and Long Life. John Rollo’s 1797 diabetic case notes used meat feeding guided by urine sugar tests. Banting’s four daily meals of meat, greens, fruit, and dry wine—avoiding sugar, starch, beer, and butter—made "Do you bant?" shorthand for dieting; the booklet was still in print in 2007. Lulu Hunt Peters’s 1918 Diet and Health popularized calorie counting as a bestseller. Low-calorie plans cutting 500–1,000 kcal daily can shed about 0.5–1 kg weekly; NIH review found roughly 8% body-mass drop over 3–12 months. Very-low-calorie regimes (200–800 kcal) can move 1.5–2.5 kg weekly but risk muscle loss, gout, and electrolyte chaos—and crash versions have been linked to sudden death without medical oversight.
Intermittent fasting may aid blood pressure and inflammation in some studies, yet human long-term proof is mixed and it may not beat steady calorie cuts for weight. Plant-based, Paleo, Mediterranean, and DASH patterns trade different nutrient risks and benefits—DASH caps sodium near 1,500 mg daily. The evidence keeps circling back: calories and consistency matter more than the slogan on the cover.
Source: Dieting
