In Matthew 5:13, Jesus admonishes us to be the salt of the earth. It’s a metaphor, but why would Jesus make a positive metaphor out of such a wicked substance. After all, as anyone who pays attention to the scientific brilliance of TV newscast health reports, salt is a silent killer. Before long, Morton will be joining American Tobacco in a walk of shame for contributing to the long, slow demise of American health.
But not so fast, scientists are increasingly saying. A study in The New England Journal of Medicine suggests that not only are the government’s recommendations for salt intake unnecessarily low but a too-low intake of salt can actually be a health risk. An article in the Washington Post presents the matter in some detail.
The current [salt] guidelines are based on almost nothing, said [Dr. Suzanne] Oparil, a distinguished professor of medicine at the University of Alabama at Birmingham. Some people really want to hang onto this belief system on salt. But they are ignoring the evidence.
How could something as simple as salt stymie scientists for so long? The answer is that, despite the dietary claims that are made for all kinds of foods, actually substantiating how eating influences human health is notoriously difficult.
Not being a chemist, a physician, a nutritionist, or anything else likely to get me a guest appearance on Dr. Oz, what am I to do? I have a host of established scientists on one side saying the salt will kill me, while a host of scientists on the other side, perhaps less established but possessing more recent studies, say that too little salt is a problem. I’m stuck in the middle, hand paralyzed over the salt shaker.
This dilemma is yet another underscore for something I’ve long believed: Christian life is better than non-Christian life. As a believer, I’d love to live a long and healthy life, but I recognize that my hope is not ultimately tied up with the findings of the Johns Hopkins School of Medicine. I can respect the way in which science lurches along testing provisional truths and moving from hypothesis to hypothesis, but I know that I can depend on the unmoving truth of the Word become flesh. The insight from the Holy Spirit, while not quite as specific as a recommended daily intake of sodium, will provide the guidance that I truly need.
While the nutritionists furiously rage together and the people imagine a vain thing, I’m going to focus on being the salt of the earth. Pass the salt, please.