Inclusion:  Female 18-65 Y BMI 18.5-25 kg/m2 Stable weight past 3 month (+/- 2.5kg) Clinically normal blood profiles Fasting blood glucose < 110 and CRP below 3 mg/L  Exclusion:  Smokers and vapers No heavy alcohol consumption (>2 drinks per day) Diabetic Presence of metabolic of intestinal disorder including lipid malabsorption or lactose intolerance Male sex Pregnant Lactating Long term use of medications Blood donation in past 4 months Previous participation in iron stable isotope bioavailability study Following a weight reduction program or having one in past 3 months Peri- or post-menopausal Acute or chronic disease Hypertension