Table 1 Components of two versions of the bone-health plan provided to subjects in Grp 1 and Grp 2

Pedometer-based activity program

Yes

Yes

Health Literacy Information

Yes

Yes

Strontium Citrate (mg)

680

680

AlgaeCal Bone-health Supplement

2,400

2,520

Trace Minerals in AlgaeCal (mg)

1,608

1,688

Calcium (mg)

720

756

Magnesium (mg)*

72

75

Magnesium from magnesium carbonate (mg)

0

275

Vitamin D-3 (IUs of Cholecalciferol)

800

1,600

Vitamin K-2 as MK-4 (mg)

1.5

0

Vitamin K-7 as MK-7 (mcg)

0

100

Boron (mg)

0

3

Vitamin C (mg)

0

50