Health / Health-Fitness / weight loss September 17, 2017 by PreventDisease.com · Published September 17, 2017 · Last modified September 15, 2017 Key To Weight Loss Success Is The Rate You Lose It The fastest way to gain weight quickly is often to lose it quickly. Losing steady as it goes appears to be the key to successful weight loss, according to a new Drexel University study appearing in the journal Obesity.