What are potential signs of vitamin d deficiency?

Maybe none: The signs and symptoms can be very minimal (fatigue). You can avoid it by just getting more vit d. Vitamin d can be ingested (in milk or supplements) and can also be created in your skin via sun exposure. The latter is becoming less common as most of us use sunscreen! vit d plays a vital role in bone development and woman are at increased risk for osteoporosis.