[Question] might targeting malnutrition (not undernourishment!) be an important cause area?

I recently (finally) started to hear some audiobooks about nutrition and recently I stumbled about a podcast directed at physicians (it´s in german… search for amboss podcast, “ernährung als medizin” = nutrition as medicine) with the medical director of “physicians association for nutrition” (www.pan-int.org → great links there!) and he argued, that malnutrition (not undernourishment!) is way more detrimental to world health than tobacco, alcohol, lack of exercising etc. combined. And it sure costs a lot of money/​​ ressources… I was impressed. And I was a little bit offended by reality, because I quitted smoking, I´m not drinking, I get some exercise, … but my dietary habits haven´t been great for years…

In our surveys some effective altruists consider mental health as a top cause. Mental Health makes up to some 120 million DALYs worldwide in 2017 (refering to this source: https://​ourworldindata.org/​grapher/​daly-from-mental-health-and-substance-use-disorders?tab=chart&country=OWID_WRL~Western%20Europe )? So I looked up, what the figures are for malnutrition are and here (https://​pubmed.ncbi.nlm.nih.gov/​30954305/​) they quote it´s about twice the size in DALYs, namely some 250 million DALYs worldwide in 2017.

But are there ea(-associated) organizations promoting evidence-based diets for the sake of health? I can find some organizations working on undernourishment (Vitamin A, Iodine, etc. - great effective things!). But again, that´s not malnutrition. Do we recommend people to get involved into this area? Should some people think about getting involved here?

If this area really is twice the size of mental health—is it neglected here?