Weight LossDietBody WeightWeight GainDiet, ReducingMolecular WeightBirth WeightObesityWeight Reduction ProgramsBody Mass IndexEnergy IntakeDiet, Fat-RestrictedObesity, MorbidOverweightBody CompositionDiet, Carbohydrate-RestrictedAnti-Obesity AgentsEatingDietary FatsOrgan SizeDiet, High-FatAnimal FeedDietary ProteinsCaloric RestrictionDiet TherapyFetal WeightInfant, Low Birth WeightEnergy MetabolismTime FactorsDietary CarbohydratesFeeding BehaviorExerciseAdipose Tissue