[lanfeust6]

Omega ratio matters most taking total intake of 3 and 6 into account. Since tallow is overwhelmingly saturated fat, it's a moot point what the ratio is. The remedy to low omega-3 is just to consume more dominant EPA/DHA and even ALA sources. Omega 6 won't fly off the charts except through consuming lots of packaged boxed foods and ultraprocessed foods, which overwhelming use vegetable oils like soybean or sunflower (North American fat consumption has skyrocketed over a century mostly owing to these foods). Even if you consume some nuts or seed oil now and then, just consume fish or a supplement.

Arguably the "healthiest" cooking oil is olive oil. If we're looking at just the fatty acids though, replacing SFA with PUFAs is a stronger predictor of lower CVD and all-cause mortality.