Strontium Sr Atomic Number: 38 Atomic Weight: 87.62 ________________________________________________________________________________ Human Physiology: - Protects against bone loss - Encourages new bone growth Prevalence: -" 15th most abundant in earth's crust Sources: - Most plant foods - Dairy products - Brazil nuts - Salt water fish Deficiency: - None documented Excess: - rickets, abdominal spasms, nausea, diarrhea, skin irritations, blood clots, fainting, memory problems seizure