After carefully reviewing my food journal again, digging around on PubMed, and sifting through all the lists of foods high in salicylic & benzoic
acid (which really make you feel like you can't eat anything,
by the way), my diet just seemed too low in both of these to be
provoking headaches.
Claims that butter causes chronic high cholesterol values have not been substantiated
by research — although some studies show that butter consumption causes a small, temporary rise — while other studies have shown that stearic
acid, the main component of beef fat, actually lowers cholesterol.59 Margarine, on the other hand,
provokes chronic high levels of cholesterol and has been linked to both heart disease and cancer.60 The new soft margarines or tub spreads, while lower in hydrogenated fats, are still produced from rancid vegetable oils and contain many additives.