How can we gain weight: Genetics  The survival of the human race
has depended, in part, to the ability of the human body to
process excess ingested food and store it in the form of
reserves (fat and/or additional muscle mass). For this
discussion, it is assumed that water is plentiful and can be
consumed freely in order to be able to build reserves.   Please
note that in order for the body to build reserves, it will need
to have available a basic set of nutrients. If it does not find
these nutrients in the food we eat (unbalanced meals), it will
not be able to build reserves. Further, just to sustain itself,
the body will try to obtain these nutrients from somewhere
(muscles and organs within the body). This is why, even if we
were to eat huge amounts of food, we may not be able to build
reserves. We need these essential nutrients just for normal day-
to-day living. We will need more than a normal amount in order
to build reserves. If we do not get these basic nutrients, or
the body is not able to assimilate t