Sources of Nutrients
Protein
- Best
sources: Cheese,
eggs, soya beans, soya flour, tofu, soya protein.
- Other
useful sources: Pulses
(lentils, beans, split peas), whole cereals and wheatgerm, sunflower
seeds, sesame seeds, nuts except chestnuts and coconuts.
An assortment of protein sources provides a good balance of amino acids,
eg by feeding pulses and cereals together at one meal.
Fats
and Oils
- Mainly
saturated: butter,
hard margarines, cheese, eggs, olives and olive oil.
- Intermediate: nuts,
coconuts, wheat germ and their oils.
- Mainly
unsaturated: sunflower
seed oil, safflower seed oil, corn oil, linseed oil, soya oil, soft
margarines which state high polyunsaturate content.
Dogs utilise unsaturated oils well. Vitamin E helps in unsaturated oil
metabolism. Unsaturated oils are oxidised, reducing their nutritional value,
by exposure to light, heat and air.
Carbohydrates
Cereals and their products (flour,
bread, cakes etc), bananas, chestnuts, cashews, pulses, pears, dried
fruit (not raisins), potatoes, sugar etc.
Carbohydrates are unlikely to
be in short supply in the average varied diet. The starch in potatoes
can cause diarrhoea in some dogs.
Roughage
(Crude Fibre)
Vegetables, bran and whole cereals,
pulses.
Vitamins
Vitamin
A:
- as vitamin A - margarine,
butter, milk, cheese, eggs.
- as the precursor carotene
- carrots and green vegetables.
In dogs, carotene has about half the nutritional value of actual vitamin
A.
Vitamin
D:
- As vitamin D - Margarine,
butter, eggs, milk.
- As its precursor, which is
converted by sunlight on the animal's skin to vitamin D - green leafy
vegetables, cereal germ, yeast.
Vitamin
E:
Cereal germs (especially wheat
germ oil), green leafy vegetables eg cabbage, spinach, curly kale,
lettuce.
Vitamin
K:
Green leafy vegetables.
B-complex
vitamins (except b12):
Yeast, whole cereals, cereal
germs, bran, eggs, various vegetables, nuts.
Easily destroyed by cooking.
Vitamin
B12:
Fortified
yeast extract (low salt), fortified soya milk, cheese, some Textured
Vegetable Proteins (read the label!), milk.
Vitamin
C:
Fresh sprouts, curly kale, blackcurrants,
rose hip pulp and syrup, cauliflower, broccoli, cabbage, citrus fruits,
strawberries, tomatoes, green peppers.
Vitamin C is not normally essential
for dogs as they synthesise their own. However, some researchers suggest
that vitamin C synthesis in dogs may be inadequate on a low protein
diet and a few individuals may not be able to synthesise the vitamin
and so require it in the diet.
Minerals
Calcium:
- Good
sources: cheese,
yoghurt, sesame seeds.
- Fair: almonds, black
radish, kolrabi leaves, dried figs, cucumbers, ripe beans, lemons,
milk, tangerines, leeks, curly kale, lettuce, cauliflower, endive,
celery, peanuts.
- Foods
with a good calcium/phosphate balance: cheese, yoghurt, ripe beans, ripe peas, lentils, hens
eggs, currants, curly kale, Brussels sprouts, kohlrabi, white cabbage,
salsify, dried figs, milk, cauliflower, celeriac, lettuce, dates,
bananas, oranges, peanuts, almonds, hazels.
- Low
calcium relative to phosphorus: cereals and their products eg bread, flour.
These foods need to be balanced with higher calcium foods to prevent calcium
deficiencies. Phytic acid in cereals may also reduce calcium absorption.
Soaking grains overnight is believed to activate enzymes which break down
the phytic acid. Vitamin D is essential for calcium absorption.
Iron:
Celeriac, cream cheese, tangerines,
spinach, various fruits, vegetables, nuts, whole cereals.
Iodine:
Seaweed, eg kelp powder, eggs,
whole grain rye and wheat, lettuce.
Other
minerals are generally well provided in a diet containing a variety
of vegetables, fruit,
nuts, milk, cheese, eggs.
If your dog has been brought up on a meat diet, make the changeover to
a vegetarian diet gradual. With active dogs there is a problem of bulk
versus energy and readers are advised to consult their vet for guidance
to ensure that sufficient energy can be obtained from the mass of food
given.
Milk alone is not an adequate
source of calcium for puppies and a mineral supplement of calcium phosphate
is recommended. Rapidly growing dogs of heavy breeds particularly need
a high calcium intake.
Foods to avoid
Macademia nuts, raisins, chocolate and raw onions should be all be avoided
as they are poisonous when ingested in large enough quantities.
Based
on a leaflet originally compiled for the Vegetarian Society by C.M.Morey |