They don't specifically mention tallow:
"We studied four different fats that are solid at room temperature
(RT), namely: Bulletproof (BP) ghee (grass-fed) (Seattle, WA, USA); Dr.
Bronner's Magic “All-One” Fair Trade, and Organic Virgin Coconut Oil
(VCO- fresh-pressed, unrefined, and “whole kernel”) (Victoria,
Australia); Tendergrass Farms organic lard (Floyd, VA, USA); and O
Organics® sweet cream butter (unsalted) from Albertsons Companies’
(Boise, Idaho, USA). Additionally, we also investigated Bulletproof
“Brain Octane®” oil (Bellevue, WA, USA) (caprylic acid triglycerides
from highly refined coconut oil) which is liquid at room temperature."
"We also explored other popular fats used in cooking for their ability
to build EZs, such as coconut oil, lard and sweet cream butter. EZs similar to those formed by ghee were observed, substantiating our earlier findings that physiological doses of several nutraceuticals and some common pain-relieving medications that promote health may mediate their effects by building EZ water within cells, thereby enhancing function and health."
"Conclusions
Large EZs (up to 800 µm) were formed against the nucleating sur-
face of saturated fats such as ghee, coconut oil, and lard. With a for-
mation time-course similar to that next to Nafion, the EZ formed against ghee had a characteristic absorbance signature near 270 nm. These
findings provide additional support to our previously published results where we demonstrated that agents that promote health also build EZ."
Full PDF available here:
https://docs.wixstatic.com/ugd/4c5fa1_0b072690d5c74ae1b3f904b3644534ea.pdf