When the term "constitution" is used in such a context, it generally implies internal consumption. I think the critical word here is "wholesome", and(10) And again, verily I say unto you, all wholesome herbs God hath ordained for the constitution, nature, and use of man—
in that regard, I think we are expected to wisely use the brains He gave us. It is not meet that He should have to command us in every detail.
And again:
The major ingredient in such products as Postum, Caro, and Pero is ... barley. I have never found that those mild drinks nor any herbal teas have bound me to them addictively(17) 17 ...and barley for all useful animals, and for mild drinks, as also other grain.
nor altered my spiritual sensitivities (viz. Heber J. Grant: "The Lord does not want you to use any drug that creates an appetite for itself.")
If anyone has felt that those drinks have affected him in that manner, then perhaps that person should avoid them.
I think that Section 89 provides members of the church(viz. me) with a hefty dose of fodder for rancor.
As Joseph Smith said:
But I beg leave to say unto you, brethren, that ignorance,superstition and bigotry placing itself where it ought not,
is oftentimes in the way of the prosperity of this Church