Related Clues:

• Lethargy cause
• Lack of pep
• Lack of punch
• Absence of vigor
• Ferrous sulfate target
• Weak condition
• Lack of vim and vigor
• Sickle cell ___
• Heavy metal shortage?
• Lack of oomph
• Iron deficiency concern
• Deficiency in red blood cells
• Hemoglobin deprivation
• Deficient blood condition
• Energy shortage