Include good sources of the nutrients which aid essential fat conversion – zinc, magnesium, calcium, biotin and vitamins B6, B3 and C.
Avoid things which inhibit conversion; alcohol, saturated and trans fats (from animal foods and processed foods), smoking, caffeine, viral infections, stress and excess intake of vitamin A and copper.
Balance your intake of omega 3 and 6 fatty acids. Due to the widespread use of sunflower oil in food manufacturing we tend to have a much greater intake of omega 6 to 3 fats in our diets. This imbalance can lead to the conversion enzymes getting used up for omega 6, restricting omega 3 conversion. The ideal balance is around 3 to 4 parts omega 6 to one of 3.
Some people may have less of the conversion enzymes and may need to be strict with the above nutrient supporters and inhibitors. These people include those with atopic allergies (asthma, eczema and hay fever which run in the family) and those with diabetics.