The present invention provides formulas for producing compositions for the structural/functional nutritional support for those who struggle with poor focus, concentration and/or memory. In addition, the present invention provides compositions comprising nutritional/botanical factors helpful to those who subjectively experience transient mental fatigue or poor cognitive function. The compositions of this invention consist primarily of the following ingredients B-complex vitamins, antioxidants, minerals, phosphatidyl serine (PS), choline, dimenthyl-aminoethanol (DMAE), docosahexaenoic acid (DHA), L-pyroglutamic acid, as well as herbal extracts from Bacopa monniera, Vinca minor, and Huperzia serrata. The present invention also relates to the administration of these compounds to alleviate mental fatigue or poor cognitive function.