It is estimated that the right investment in nutrition could save 3.7 million lives by 2025.

Dr Naoko Yamamoto, Assistant Director-General, WHO, said, "In order to provide quality health services and achieve Universal Health Coverage, nutrition should be positioned as one of the cornerstones of essential health packages." 

"We also need better food environments, which allow all people to consume healthy diets."

Essential health packages in all settings need to contain robust nutrition components but countries will need to decide, which interventions best support their national health policies, strategies and plans.

Key interventions it said include: providing iron and folic acid supplements as part of antenatal care; delaying umbilical cord clamping to ensure babies receive important nutrients they need after birth; promoting, protecting and supporting breastfeeding; providing advice on diet such as limiting the intake of free sugars in adults and children and limiting salt intake to reduce the risk of heart disease and stroke.

It said investment in nutrition actions will help countries get closer to their goal of achieving universal health coverage and the Sustainable Development Goals.

It can also help the economy, with every US$1 spent by donors on basic nutrition programmes returning US$ 16 to the local economy. 

The world has made progress in nutrition but major challenges still exist. There has been a global decline in stunting (low height-for-age ratio): between 1990 and 2018, the prevalence of stunting in children aged under 5 years declined from 39.2 per cent to 21.9 per cent, or from 252.5 million to 149.0 million children, though progress has been much slower in Africa and South-East Asia.

It noted obesity, however, is on the rise. The prevalence of children considered overweight rose from 4.8 per cent to 5.9 per cent between 1990 and 2018, an increase of over 9 million children. Adult overweight and obesity are also rising in nearly every region and country, with 1.3 billion people overweight in 2016, of which 650 million (13 per cent of the world's population) are obese.

Obesity is a major risk factor for diabetes; cardiovascular diseases (mainly heart disease and stroke); musculoskeletal disorders (especially osteoarthritis – a highly disabling degenerative disease of the joints); and some cancers (including endometrial, breast, ovarian, prostate, liver, gallbladder, kidney, and colon).

An increased focus on nutrition by the health services is key to addressing both aspects of the "double-burden" of malnutrition. The Essential Nutrition Actions publication is a compilation of nutrition actions to address this "double burden" of underweight and overweight and provide a tool for countries to integrate nutrition interventions into their national health and development policies, it said.