WHAT
ARE ISOFLAVONES?
They are a
sub-class of a major group of phytochemicals called flavonoids. Due
to their structure they are considered to
be phytoestrogens, non-steroid substances, diphenols that have a
similar
structure to that of human oestrogens.
PROVEN BENEFITS OF ISOFLAVONES
- They have
a gentle oestrogenic effect, as isoflavones have a chemical structure
that
enables them to act in the same places as the oestrogens, so that they
act by partially taking the place of these oestrogens.
- They help
to alleviate and palliate the effects produced by climacteric syndrome
or menopause.
- They
intervene in the prevention of bone decalcification as they avoid, due
to their
oestrogenic effect, the mobilisation of the calcium in the bones.
- In
addition, by maintaining the compound levels with oestrogenic effect,
the
blockage of calcium absorption that is caused when the level of
oestrogens in
blood plasma descends, is avoided.
- Given the
selective nature of their effect on different oestrogenic receptors,
isoflavones could be considered as truly selective modulators of
oestrogen
receptors.
Their
actions would
basically take place in those target organs and tissues wherein beta
type
oestrogenic receptors are to be found in relevant quantities such as
the
central nervous system, bone and vascular wall.
Inversely, they would not
affect those organs with preferential
expression of the alpha type oestrogenic receptor, such as the breast
and the
endometrium.
AT WHAT STAGE OF LIFE ARE THEY
MOST INDICATED?
During the
climacteric period is when the use of calcium, vitamin D and
isoflavones is
most indicated.
The climacterium
corresponds to the period during which an important series of changes
take
place in the organism of a woman, with the most important being the
following:
- A
progressive reduction in the menstrual period and ovarian cycle.
- A
reduction in the level of hormones
- A series
of physical and emotional changes
During the
climacterium the menopause appears, which
simply means the permanent cessation of menstruation, being clinically
diagnosed retrospectively after 12 months of amenorrhea, preceded by
the
perimenopause.
Due
to the hormonal
changes, some recommendations about health and diet should be borne in
mind.
The climacteric woman is at
greater
risk of osteoporosis, disorders of the blood lipids and
arteriosclerosis, as
well as weight gain.
This
is why correct
eating habits prior to the commencement of these processes can produce
a
reduction in the effect of the hormonal changes and the prevalence of
certain
pathologies.
ISOFLAVONES HELP TO PREVENT
DISEASES
Osteoporosis
Amongst the
nutritional factors implicated in bone structure, calcium occupies a
notable
position.
This is why women
over the age of 45 are
recommended a
greater daily intake of this mineral, 1.500mg/day.
Excess weight
The alteration of
the hormonal balance during the climacteric provokes weight gain, and
it is
essential to control
the intake of
saturated fats, thereby
reducing the appearance of cardiovascular diseases.