Excess vitamin C is certainly not harmful; nobody worries about drinking two glasses of orange juice (or even just one, and picking up more vitamin C from other sources), at least not because of its vitamin content. Orders of magnitude more vitamin C might be problematic, but 400% just isn&#x27;t a problem.<p>Manganese seems to be the same way; at around 500% DV, you should worry about toxicity, but not before.<p>The rest of your criticisms are legitimate, though they&#x27;re much more matters of opinions&#x2F;preference than objective inferiority. (Personally, for instance, I find the taste of Ensure just fine; a bit on the sweet side, yes, but personally I use it when I&#x27;m failing to have an appetite, and sweet works for me.) Note that if you&#x27;re aiming for a full meal replacement, the 350-calorie Ensure Plus is probably a better choice.<p>One objective advantage of Ensure is that, to my knowledge, it does not cause the legendary smelly stool that Soylent does.