There is no real way for any person on their own to determine if this product is protecting your bones or not. The only way I know is by my fingernails. Prior to taking this Ultimate Bone Support my fingernails were soft and broke easily. Today my fingernails are hard. If I miss one day of this Bone Support even though I continue to take my calcium, my fingernails start breaking again. When I restart the Bone Support, the very next day my fingernails are hard again. Also, when playing badmitten, I fell and nothing broke. I am 73 years old. I definitely do recommend this product.