Greater weight loss was reported in studies with higher baseline weights , smaller proportions of female participants , older participants , or longer duration s , and in studies in which weight loss was a goal .
The prescription of vegetarian diets  reduces mean body weight , suggesting potential value for prevention and management of weight-related conditions
In observational studies , vegetarians generally have lower body weights compared with omnivores .
However , weight changes that occur when vegetarian diets are prescribed have not been well quantified .
We estimated the effect on body weight when vegetarian diets are prescribed .
Vegetarian diet in the treatment of mild hypertension: a randomized controlled trial.
The effect on blood pressure of an ovo-lacto-vegetarian ( OLV ) diet was assessed in a r and omized controlled crossover trial . Fifty-eight mild untreated hypertensive subjects recruited from the Perth Centre for the 1983 National Heart Foundation ( NHF ) Risk Factor Prevalence Survey were r and omly allocated to one of three groups : the first maintained their usual diet throughout 12 weeks ; the other two were given an OLV diet for either the first or second 6 weeks of the 12-week trial . A significant fall in systolic blood pressure , on average of the order of 5 mmHg , was associated with eating an OLV diet .  Blood pressure change was unrelated to change in urinary sodium , potassium or body weight , but was related to initial blood pressures . Although an OLV diet may have an adjunctive role in control of mild hypertension , in view of likely problems with acceptability the dietary components responsible for the blood pressure changes need to be identified
Greater weight loss was reported in studies with higher baseline weights , smaller proportions of female participants , older participants , or longer duration s , and in studies in which weight loss was a goal .
The prescription of vegetarian diets  reduces mean body weight , suggesting potential value for prevention and management of weight-related conditions
In observational studies , vegetarians generally have lower body weights compared with omnivores .
However , weight changes that occur when vegetarian diets are prescribed have not been well quantified .
We estimated the effect on body weight when vegetarian diets are prescribed .