Calcium + Vitamin D

Calcium is found in dairy and leafy greens; vitamin D is made from sunlight and found in oily fish

Strengthens Bones & Prevents Fractures

Help lower fracture risk, especially in older adults and those in long-term care

Boosts Bone Density for Stronger Bones

Enhances BMD, particularly in younger individuals and those with low calcium intake

Overall Impact (by Goal)

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Authority

Personalities who have claimed to use this supplement in the past

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Peter Attia

Researcher

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All Potential Benefits Studied

Includes emerging, secondary, and context-dependent effects

Reduces Fracture Risk 1 2

Calcium and vitamin D supplementation can lower the risk of fractures, particularly hip fractures, in adults over 50. The benefits are more pronounced in individuals aged 80 and older and those in long-term care facilities.

Boosts Immune Function 3 4 5 6

Vitamin D supplementation studies have shown beneficial effects of vitamin D on immune function, in particular in the context of autoimmunity.

Supports Muscle Strength and Function 7 8

Vitamin D contributes to muscle protein synthesis, reducing the risk of falls and improving physical performance, especially in older adults and athletes.

Helps Alleviate Depression Symptoms 9 10 11 12

Supplemental vitamin D has a small-to-moderate beneficial effect on depression, particularly in individuals with low vitamin D levels. It may also enhance the effectiveness of antidepressants.

Improves Bone Mineral Density (BMD) 13

In people under 35, calcium supplementation can enhance total body BMD, with the greatest improvements seen in the femoral neck. The effect is stronger in individuals with low baseline calcium intake.