I am a 21 year breast cancer survivor aged 55. (Praise God for that!) I had surgery, chemo, radiation, and Tamoxifen before Menopause, which apparently can weaken your bones. My parents both had osteopenia, and a sister, who is one year older, did as well. I thought I would be different because I had a very healthy diet, full of broccoli, spinach, and other vegetables, dairy products, proteins, and got regular strength training 3-5 days a week, paying attention to lifting heavier weight which would fatigue in 8-12 reps- and also jogged or did Zumba. I am a fitness instructor and I had been teaching 15 classes a week before all the Covid shutdowns. I also got sunlight exposure frequently because I love gardening and the outdoors. I am on the lighter side though at 113lbs which is another risk factor for bone loss. Two years ago at age 53, I had my first bone density scan though and discovered I had osteoporosis. I was shocked. My one year older sister who had osteopenia didn't do ANY exercise, she drank Dr. Peppers all day-literally- and hated being outdoors so had little sun exposure for Vitamin D. She did not take any supplements. It was suggested I speak to my primary care doctor about taking a medicine to help, but I did some research and felt these type medicines are not all they are hyped to be, and actually have dangerous side effects such as osteonecrosis of the jaw, and may even make bones more brittle and dried up with extended use. It was dismaying to find out my diagnosis because I felt I was already doing all of the right things to preserve and protect my bones! Perhaps the cancer treatments, combined with hereditary tendencies, and a lighter body weight were the causes? After some reading, I added thisBone-up supplement which I took regularly 2 capsules breakfast, lunch, and dinner for the last two years. I had been using 2000iu Vitamin D3 during the winter, and also occasionally on cloudy days in summer previously, but I changed it to every day when I got the diagnosis of osteoporosis. I feel the increased D3 and particularly this Bone-Up have made a difference!! I am so happy to see my scores have improved. I do keep an eye on my Vitamin D levels in my blood work, and it is within the normal range. I would recommend the books , "Your Bones: How You Can Prevent Osteoporosis and Have Strong Bones for Life―Naturally" by Lara Pizzorno, and "Dr. Lani's No-Nonsense Bone Health Guide: The Truth About Density Testing, Osteoporosis Drugs, and building bone quality at any age" by Lani Simpson. They are good resources to learn more and be better informed about all aspects of this issue, including understanding testing and nutritional aspects