Benefits of a Vagan Diet

 Benefits of a Vagan Diet


Compared withnon-vegetarians, Western insectivores have a lower mean BMI( by about 1 kg/ m2),  lower mean tube total cholesterol attention( by about 0 · 5 mmol/ l), and a lower mortality from IHD( by about 25). They may also have a lower threat for some other conditions similar as constipation, diverticular complaint, gallstones and appendicitis. No differences in mortality from common cancers have been established. There's no substantiation of adverse goods on mortality. 




Vegetarians: Vegan: Mortality


Vegetarian diets are based on cereals, pulses, nuts,

vegetables and fruits, and may also include dairy products

and eggs. Lacto-ovo-vegetarians do not consume any meat,

poultry or fish, but do include dairy products and eggs in

their diet; vegans do not consume any foods of animal

origin. Unless otherwise specified, reference to vegetarians

means lacto-ovo-vegetarians, because relatively little

information is available for vegans. In general, a vegetarian

diet is lower in saturated fat and higher in starch, NSP, fruits

and vegetables than a non-vegetarian diet.


Plasma cholesterol concentration


Studies have consistently reported that vegetarians have

lower mean plasma total cholesterol concentrations than

comparable non-vegetarians (Dwyer, 1988, 1991; Sanders

& Reddy, 1994; Thorogood, 1995). In an analysis of data

from 3000 men and women, Thorogood et al. (1987)

reported that mean total cholesterol concentrations

(mmol/l), adjusted for age and sex, were 4·29 in vegans,

4·88 in vegetarians, 5·01 in fish eaters and 5·31 in meat

eaters (Table 1). Mean concentrations of HDL-cholesterol

were higher in the fish eaters, but otherwise did not differ

between the groups.


Mortality

The relatively low plasma cholesterol concentrations of

vegetarians would be expected to reduce the risk of IHD.

Thorogood et al. (1987), for example, estimated that the

0·4 mmol/l lower plasma cholesterol concentration of

vegetarians compared with meat eaters which they observed

might lead to a 24 % reduction in the incidence of IHD. It is

also possible that vegetarian diets might protect against

cancers of the colo-rectum, breast and prostate, since these

cancers are common in rich countries but rare in poor

countries with predominantly plant-based diets.


Morbidity

Relatively little information is available concerning morbid￾ity in vegetarians. There is some evidence that vegetarians may have a lower incidence of constipation (Burkitt et al.1972), diabetes (Snowdon & Phillips, 1975), diverticular disease of the colon (Gear et al. 1979), gallstones (Pixleyet al. 1985), hypertension (Beilin, 1993) and emergency appendicectomy (Appleby et al. 1995).


Conclusion

Compared with non-vegetarians, Western vegetarians have

a lower BMI (by about 1 kg/m2), a lower plasma cholesterol

concentration (by about 0·5 mmol/l), and a lower mortality

from IHD (by about 25 %). They may also have a lower risk

for some other diseases such as diverticular disease,

gallstones and appendicitis. No differences in mortality

from common cancers have been established. There is no

evidence of adverse effects on mortality. Much more

information is needed, particularly on other causes of death,

osteoporosis, and long-term health in vegans. The evidence

available suggests that widespread adoption of a vegetarian

diet could prevent approximately 40 000 deaths from IHD in

Britain each year.

References

Appleby P, Thorogood M, McPherson K & Mann J (1995)

Emergency appendicectomy and meat consumption in the UK.

Journal of Epidemiology and Community Health 49, 594–596.

Appleby PN, Thorogood M, Mann JI & Key TJ (1998) Low body

mass index in non-meat eaters: the possible roles of animal fat,

dietary fibre and alcohol. International Journal of Obesity 22,

454–460.

Beilin LJ (1993) Vegetarian diets, alcohol consumption, and

hypertension. Annals of the New York Academy of Sciences 676,

83–91.

Burkitt DP, Walker ARP & Painter NS (1972) Effect of dietary

fibre on stools and transit-times, and its role in the causation of

disease. Lancet ii, 1408–1412.

Burr ML & Butland BK (1988) Heart disease in British vegetarians.

American Journal of Clinical Nutrition 48, 830–832.

Chang-Claude J, Frentzel-Beyme R & Eilber U (1992) Mortality

pattern of German vegetarians after 11 years of follow-up.

Epidemiology 3, 395–401.

Department of Health (1992) The Health of the Nation: A Strategy

for Health in England. London: H.M. Stationery Office.

Dwyer JT (1988) Health aspects of vegetarian diets. American

Journal of Clinical Nutrition 48, 712–738.

Dwyer JT (1991) Nutritional consequences of vegetarianism.

Annual Review of Nutrition 11, 61–91.

Fraser GE, Sabaté J, Beeson WL & Strahan TM (1992) A

possible protective effect of nut consumption on risk of

coronary heart disease. Archives of Internal Medicine 152,

1416–1424.

Gear JSS, Ware A, Fursdon P, Mann JI, Nolan DJ, Brodribb AJM

& Vessey MP (1979) Symptomless diverticular disease and

intake of dietary fibre. Lancet i, 511–514.

Key T & Davey G (1996) Prevalence of obesity is low in people

who do not eat meat. British Medical Journal 313, 816–817.

Key TJ, Fraser GE, Thorogood M, Appleby PN, Beral V, Reeves G,

Burr ML, Chang-Claude J, Frentzel-Beyme R, Kuzma JW, Mann

J & McPherson K (1998) Mortality in vegetarians and non￾vegetarians: a collaborative analysis of 8300 deaths among. 


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