Anthropometry
Anthropometric measurements were conducted at baseline and follow-up of each intervention period. Body weight was measured using a digital scale (WM203) to the closest 0·1 kg and with study participants in light clothing and barefoot. Standing height was measured using a wall-mounted stadiometer (SE206) to the nearest 0·1 cm. BMI was calculated using Quetelet’s equation. Study participants were categorised as underweight (BMI < 18·5 kg/m