Cooking with tallow can have several benefits, including:
Immune system
Tallow contains fat-soluble vitamins that can support the immune system. 
Bone health
Tallow contains fat-soluble vitamins that can support bone health. 
High smoke point
Tallow has a high smoke point, which is important when cooking at high temperatures. 
Healthy fats
Tallow contains monounsaturated and polyunsaturated fats, which are considered healthier. 
Antimicrobial properties
Tallow contains palmitoleic acid, which has antimicrobial properties that may help to ward off infections. 
Weight loss
Healthy fats like those in tallow can help you feel full, which may help with weight loss. 
Nutrients
Tallow contains many vitamins and minerals, including A, D, E, K, and B1, which can be easier to absorb when cooked with. Tallow also contains choline, which supports the nervous system, and healthy fatty acids that protect nerve cells. 
Inflammation
Tallow contains conjugated linoleic acid (CLA), a natural anti-inflammatory that can help reduce inflammation. 
Skin health
The saturated fat in tallow can nourish skin cell membranes, helping to keep skin smooth. Tallow can also be used as a natural moisturizer. 
Tallow can be used as a butter replacement or as your main cooking oil. It can also be used in skin and hair care.