Beef tallow, which once might have been more at home in a Dickens novel than a TikTok video, is having an official Moment.

Influencers are singing its bovine praises. Robert F. Kennedy Jr., the Health and Human Services secretary and unofficial head of the “Make America Healthy Again” movement, is a key hype man, using a vat of the stuff to fry his Thanksgiving turkey and choosing a location of tallow-touting Steak ’n Shake for the backdrop of a Fox News interview last month. People are even slathering it on their faces.

Dining and Cooking