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INTRODUCTION TO FOODS
Without food we die, but we can last longer without food than we can without water.
In this new millenia, vitality is a key factor in our lives. The many foods we eat and the nutritional additives and herbal
supplements we consume and their possible
influence on our vitality. As a professional
toxicologist, I am particularly interested in dose
(how much), cause and effect and also interactions.
Down South in Mexico on the festival known as the Days
of the Dead - at the beginning of November- they serve
particularly wholesome foods. These include,
as key constitutuents, corn and beans. Together corn
and beans form a complete protein food, which in
simple terms means that the essential amino acids
which are low in corn, are high in beans and those high
in corn are low in beans, that is, the amino acids in
beans and corn supplement each other.
This combination, sometimes called succotash, is known
and used in many cultures. I saw it throughout my childhood
in Africa, where corn was also called, maize and mielies. In
addition, when planted together, the beans (legumes) put
back into the soil the nitrogen which the corn takes out.
I can hear it now, but beans make me gas! Well, we have
products on the market for that. Down South they add some
chopped epazote (Chenopodium ambrosioides - Mexican
basil or Mexican oregano) to their bean dishes as a
digestive aid to reduce gas and bloating.
The Iroquois traditionally add pumkin or squash to their
succotash at festival time. They call corn, beans and
squash, the "Three Sisters" because of their combined
nutritive value.
BRAN (14%) which contains
ENDOSPERM (83%) which contains
Although the whole grain is edible, the bran and germ are
often removed during milling to improve storage qualities.
In enriched grains and cereals, some nutrients are added
back. Some breads are now also made from sprouted
grains. Become a label reader and phone the 800 number
if you want more information. Know what you are buying and
be certain that is what you really want.
The early African legumes included the morama bean
(Tylosema eculentum) which tastes like cashew nuts,
when roasted and has 30-39% protein. Many of the
local "wild" African plant foods are very high in protein
and there are some projects to now, attempt to
"domesticate" them. However, to date only a few, such
as the cowpea, the guar bean and the lablab bean have
made it to the internation scene, unless one counts lentils,
which are among the earliest crops cultivated by man.
On the Indian continent lentil dishes are often called dahl.
When one hears of the wonders of beans and soybeans, in
particular, one is seldom told that they may often contain
antinutrients ("minuses"). For example, soybeans contain a
tryptophan inhibitor, hence the beans should be cooked, or
sprouted or otherwise processed to make the greatest
nutritional use of them. In general, sprouting converts the
legume starches into simple sugars. Usually, only a small
percentage of starches are not easily digested, for example,
in grains about 7%, however, about 20% in baked beans can
be left undigested. This is then is fermented by the microflora
of the colon, leading to GAS.
In general, legumes are high in protein, lentils - 25%, cowpeas
- 23-35% and common beans (Phaseolus) - 22%. Their amino
acid profile is usually high in lysine (grains are low in lysine), but
low in methione and cystine. Peanuts are in high protein - 25%
and have a fairly balanced amino acid profile. This led, earlier in
this century, to many peanut (ground nut, monkey nut) growing
schemes in unsuitable climates of the world and many people
died from the results of projects that should only have brought
good.
Many legumes are high in Vitamine B1 (thiamine), folic acid,
Vitamin B6 (pyridoxine) and iron. In addition, particularly,
soybeans contain fairly large quantities of plant estrogens
(phytoestrogens), called bioflavonoids. These entities, which
we are only starting to understand, are of help to menopausal
and post-menopausal women.
So as my grandmother would have said, "Eat your veggies and
makes certain these include, legumes!"
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COMPLEMENTARY FOODS
I am always amazed at the knowledge our ancestors possessed,
from many ethnic cultures, and this is often
best displayed at festival times.
GRAINS
Introduction
During our daily meals we usually consume both grains and legumes. In the US the most common grains that we eat are wheat and rice. However, in other parts of the world different grains are eaten and will be mentioned below.
Amaranth (Amananthus spp)
This was a staple food of the Aztecs. It is gluten free, since
it is not a true grain, but a broadleaf plant. However, the
amaranth seeds are very tiny and have a glutinous, sticky
texture, which is not easy to use in our "rush" type cooking
and baking. So in order to make use of its high lysine content,
it is best to use 1 part of amaranth seeds to 2 or more parts of
one or several types of grain (which are all low in lysine) thus
producing a very nutritious mix and/or flour. Amaranth is very
high in iron (8x) and Vitamin B2 (4x), as compared to wheat.
If you decide to grow these plants, rather than buying the seeds
or perhaps in addition to buying them, remember some of the
varieties of these plants are quite pretty *and* the leaves are
definitely edible - a type of spinach or chard - and they grow
like weeds!!! One plant can take up 3-4 square feet of space.
Barley (Hordeum spp.)
H. distichon and H. vulgare are two common forms
and the parents of many of our cultivated forms. The
ancient Egyptians claimed that their goddess, Isis,
gave the gift of barley to man and they used it as a
grain and made beer from it. Barley was mentioned
in the Bible as being destroyed in one of the plagues
of Egypt. The Greeks also considered it to be a sacred
grain. Barley along with oats and flaxseed, grows
well in moist colder climates. The early Britons
used it in their breads, in their beer and honored it on
their coins and later used barley corns in their unit of
measure, the inch. In Scotland and Ireland one of its
most important uses is in the making of whiskey,
which means "water of health". Barley makes a good
addition to soups and "barley water" is still used by
mothers in the UK and Europe for "sickly" kids with
digestive problems. It is believed that in the Middle
Ages, barley was sprouted (a fairly standard technique
to improve the nutrient value of grains and seeds) prior
to use in soups, breads, etc. Barley, like oats, can
reduce cholesterol levels and has antioxidant and
antiviral properties. I am addicted to travel adventure
stories and I often wondered what Tibetan "tsampa",
the traditional trail food of the high Himalayas was. It
is a dough made from roasted barley flour, mixed with
tea and yak butter.
Buckwheat (Fagopyrum spp.)
F. cymosum, F. esculentum and F. tataricum are the
three most commom species. In the US it is used in
pancake flour, in buckwheat cakes and as thickening
for gravies, etc. With its hulls removed and toasted,
it is called "groats" and is used as a breakfast food.
Corn/Maize (Zea Mays)
The wonders of these plants are told of in many tribal
legends of North and South America. The grains may
be brown, white, pink, red, yellow, purple, streaked or
speckled. The uses of this plant seem never ending,
starches, sugars, Bourbon, livestock feed, industrial
feedstock, etc. Eaten together with legumes it gives
a complete protein food, however, corn is deficient in
B vitamins and plants high in these vitamins should be
eaten too.
Kamut (Sorghum spp.)
Sometimes known as Egyptian Wheat. Again like spelt,
although containing gluten, it is often tolerated by people
with gluten allergies. Kamut has 1.7x more protein than
wheat, also more of all the essential amino acids (except
tryptophan), plus magnesium, iron, zinc and fatty acids than
wheat. It can be substituted 1:1 in wheat recipes. Kamut
bread is sold in the Bay Area at Trader Joes and other
stores.
Millet & Sorghum (Panicum, Setaria, Echinochloa,
Eleusine, Pennisetum and Sorghum spp.)
Millet is mainly used now in cereals, ethnic flat breads,
livestock feeds (including bird seed mixes) and for the
making of alcoholic drinks. Sorghum can be used in the
making of a type of wine and also as a porridge/breakfast
food. Sorghum porridge has the advantage over oats in
that it is a lot easier to make (that is a lot harder to spoil!!!).
Oats (Avena sativa)
Preparations from this grain can have a very high protein
content - 16%. I eat oatmeal in the hope it will help me,
healthwise - lower my cholesterol, etc. To make it more
tasty I add raisins. In Scotland, they add sugar/honey and
butter/cream. They also make oatcakes, which I never
got to like, unless heavily coated with honey or jams or try
this one - whiskey-marmalade. I have heard that Queen
Elizabeth II always takes her breakfast oatcakes with her
when she travels. I wonder what is in her special ones!
Quinoa (keen-wa) (Chenopodium quinoa)
This was the staple crop of the Incas and the name means
"mother grain"! Quinoa is not a true grain, being a member
of the goosefoot family (Chenopodium) along with spinach,
chard and beets. It is gluten free. NAS (National Academy
of Sciences) has called quinoa the "best source of protein
in the Vegetable Kingdom". It has close to an ideal amino
acid balance (similar to milk), being high in lysine (unlike
true grains) and cystine and methionine (unlike soy). It is
also high in calcium, iron, Vitamin B2 and the essential
fatty acid (see my next e-mail), linoleic acid. Why is it not
used more often? The quinoa seeds, probably as a natural
pest deterrent, are coated with a bitter coating of saponins.
This should be totally washed off (until no foaming occurs ).
The Incas used the foamy wash water as a shampoo. Flour
is commercially produced, but I have seldom seen it for sale.
Rice (Oryza spp. and Zizania spp.)
Wild rice contains 2x protein as white rice, 4x as much
phosphorus, 8x as much thiamine (Vitamin B1) and 20x
as much riboflavin (Vitamin B2). Whole brown rice has
a generous supply of B vitamins, calcium, phosphorus
and iron. If you eat white rice, please choose converted
or enriched, over polished and dehulled. It is of interest
to note, that if, you ate a rice grain uncooked and whole,
25% of the protein would be digestable, whereas if you
grind it and cook it 65% is digestable. But please
remember, other nutrients may be reduced during
grinding and or cooking.
Rye (Secale cereale)
Like barley and oats, it is a hardy crop and is used,
most often now not on its own, but as an adjunct to wheat,
in German, Russian and Scandinavian breads. In earlier
times, rye got a "bad name" from an ergot fungus that
sometimes grew on it. Ergot has some very interesting
properties.
Spelt (Triticum Spelta)
It is one of the grandmothers of the wheat family and
was a key grain in the Old Testament of the Bible.
Because of its great water solubility it has long been
considered the most digestible of the grains. It contains
more protein (1.4x) and crude fiber than wheat. Spelt is
also higher in Vitamin B1 (Thiamine) 1.25x, Vitamin B2
(Riboflavin) 4x, Vitamin B3 (Niacin) 2.5x and iron 2.5x
than wheat. When using it one needs to add 20-25%
more spelt than called for in a wheat recipe (or use 3/4
the amount of liquid stated). Often people with gluten
allergies can tolerate spelt, even though gluten is present.
Teff (Pea abayssinca)
This is the grain of the Horn of Africa (Eritrea and Ethiopia).
It is used in their traditional "flat" breads, but can be used as
a wheat substitute in baking and as a breakfast cereal. It is
essentially gluten free and higher in potassium, iron, copper
and calcium than wheat, barley or sorghum. It comes in
several varietal colors, ivory, brown and reddish tan.
Because teff is a very small grain, its germ and bran ratio to
starchy endosperm is greater than most other grains.
Wheat (Triticum spp.)
The whole grain kernel of wheat consists of 3 parts -
GERM (2.5%) which contains
protein 8%,
Vit B1(Thiamine) 64%, Vit B2 (Riboflavin) 26%,
Vit B3 (Niacin) 2%, Vit B5 (Pantothenic Acid) 7%,
Vit B6 (Pyridoxine) 21% and Vit E.
protein 19%, Vit B1 33%,
Vit B2 42%, Vit B3 -, Vit B5 50%, Vit B6 73%.
protein 70-75%,
Vit B1 3%, Vit B2 32%, Vit B3 12%,
Vit B5 43%, Vit B6 6%.
LEGUMES
There are about 600 genera and 13,000 species
in this family of plants. The best know seeds are
the staple food crops of beans, peas, soybeans
and lentils. Other well known pod crops come from
the carob tree (St. John's bread) and the tamarind
tree, whereas, licorice and indigo are also of interest.