fred wrote: I ate a high raw cholesterol/fat diet during one year and ended up with dyslipidemia and arrhythmia.
You have reported a number of health issues on this board.
Does that make good cholesterol dangerous?
Or does that indicate that you may be a very vulnerable person, who may have a number of health issues?
Where are the evidences that high cholesterol food when raw don’t increase dangerously blood cholesterol level when eaten on a daily basis?
Where are the studies that they do?
If only they would study the effects of a raw food diet...
As for the studies showing an association between low cholesterol and depression/suicidality, what is the cause of depression/suicidality
As studies show, the most likely link is the link between cholesterol and serotonin, which highly affects mood and agression.
Major depressive disorder is associated with impaired serotoninergic neurotransmission.
Review: "A rich body of research has identified deficits in serotonin function as a risk factors for suicide in depressive disorder. Moreover, there is now considerable evidence that measures of serum cholesterol concentrations may provide a clinically useful reflection of this mechanism"
Corvell WH
Low cholesterol may effect serotonergic neuronal activity and some types of 5-HT receptors, then may be related to violent behavior during sleep.
Agargun MY et al
Cholesterol may affect neurotransmission in the CNS. Previous work has identified abnormalities in serum cholesterol levels in patients with mood and anxiety disorders as well as in suicidal patients.
Papakostas GI et al
possible role of serotonin in the brain in the relationship of suicidal behavior or ideation with low cholesterol concentration in panic disorder.
Ozer OA et al
In males, low cholesterol is linked to low serotonergic activity. (may contribute to higher incidence of violent behavior in males)
Markianos M et al
Platelet serotonin and serum cholesterol concentrations were significantly lower in suicidal than in non-suicidal patients
Marcinko D et al
Excess cholesterol may adversely affect the function of membrane-bound serotonergic structures
Papakostas GI et al
In metabolic syndrome, HDL cholesterol is decreased. Metabolic syndrome is associated with reduced central serotonergic responsivity.
Muldoon MF et al
In psychotic mania the relationship may be reverse: "Manic patients with psychotic features had increased platelet serotonin concentrations and decreased levels of cholesterol"
Saqud M et al
Patients with anxiety disorders and obsessive-compulsive disorder had elevated cholesterol levels.
Peter H et al
fred wrote:And what about the vegetarians who have low cholesterol and healthy mood ?
You mean the Seventh Day Adventists having to report about "negative emotions"?
Do you really think that is a reliable scientific tool?
the few studies you mentioned are nothing compared to the overwhelming evidences built during many decades by generations of scientists that high cholesterol/fat food promote heart disease.
If you list all oxysterols as well as good cholesterol as 'cholesterol', then they are right. (regarding ischemic heart disease mortaility, but not regarding stroke mortality, see
Prospective Studies Collaboration)
But science has come a long way since that.
Science has discovered that the molecule cholesterol differs from oxysterols.
Science has discovered that (good) cholesterol readily oxidizes due to heat (cooking temp).
Science has discovered that its actually those oxysterols that are hazardous.
Listing oxysterols as 'cholesterol' is being oblivious to all those discoveries.
If you are really interested in the cause of coronary diseases, you need to make distinctions,
and find real causative relationships instead of mere associations.
Please show me just one study that shows a relationship between consuming food high in good (unaltered / unoxidized) cholesterol and heart disease.
Just one....