That snake oil chart needs to be viewed with some skepticism. Magnesium, for example, is well researched and strongly correlated with prevention of headaches, yet in the chart, which is presumably treating it as an all and sundry supplement gives it a poor rating.
And the balanced diet is simply an apology for mediocrity from dieticians. Dieticians are still popping up on the telling to push theories that have been comprehensively debunked.
I can’t be arsed debunking the dieticians more fully just now because I have a fad meal waiting to me eaten (no grains, shock horror, how will I get energy without carbohydrates?!).
I can’t source the factoid – so view with suspicion – but in parts of the USA where industrialised crop farming is at its peak the soil is so depleted, you would need to consume the equivalent of 27,000k calories of “balanced diet” to get your RDAs across the board.
Eat less healthful foods (aka, sugar, grains) sparsely and eat healthful foods (veg) to your heart’s content.