When you're cooking, opt for butter, tallow or coconut oil instead of seed or vegetable oils, Mark said. "The latter prioritise the storage of fat," he added. Unsalted British Butter (250g) from M&S ...

This tallow balm stick combines the nourishing power of tallow with the refreshing benefits of rosemary and lemon balm.

Another great, lesser known, food storage method is meat potting. Learn more about this ancient method and how you can use it ...