A vegan diet is more and more prevalent in the general population in Israel in recent years. There have been some concerens that a vegan diet may lack in bone-health related nutrients (such as calcium, protein and vitamin D), and therefore may cause a decreased bone mineral density. The study aims to compare bome mineral density and other biochemical bone health parameters in vegan and omnivore non-menopausal Israely females.

Inclusion Criteria:

• generaly healthy
• vegan group: vegan diet for the past 3 years
• omnivore group: comsumption of animal products at least 3 times a week

Exclusion Criteria:

• pragnent / breastfeeding women
• amenorrhea (absence of a menstrual period) for more than 3 months
• amenorrhea in the past
• significant underweight in the present/past (BMI < 17.5)
• taking medicine that affect bone density
• hypo/hyper thyroidism
• hypo/hyper parathyroidism
• smokimg in the past 10 years
• over consumption of alcohol (more than 7 units a week)

generaly healthy vegan and omnivore females, age 30-45