Dietary supplements for the pregnancy phase It should be noted that dietary supplements are not a substitute for a balanced or varied diet or a healthy lifestyle. Folio 2 basic DHA combines bioactive folic acid, iodine, DHA, and selected vitamins in a purely plant-based capsule. This product is specifically suitable for women from the 13th week of pregnancy until the end of breastfeeding. DHA contributes to the maintenance of normal brain function and normal vision.