I have a ferritin level of 3.3. despite regular exercise and a healthy diet, i cannot lose weight. is there a correlation between low ferritin and inability to lose weight?

No: Your ferritin level in indicative or iron deficiency and you should oral iron and multivitamin supplements. Wish you good health!. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.