Omega-3 vetzuren hebben bloeddrukverlagende werking

Effect of Eicosapentaenoic and Docosahexaenoic Acids on Blood Pressure and Hypertension: A Population-Based Intervention Trial From the Tromso Study

Dit onderzoek met voedingssuppletie werd uitgevoerd om het voordeel van omega-3 vetzuren uit visolie te beoordelen bij patiënten met hoge bloeddruk (hypertensie).
De studie omvatte twee groepen patiënten (156 patiënten in totaal) die dagelijks ofwel 6 gram van 85% omega-3 vetzuren (EPA/DHA) of 6 gram maïsolie ontvingen.
Er was een significante daling van de bloeddrukwaarden in de groep die visolie ontving, maar niet in de groep die maïsolie had gekregen.
De verlaging van de bloeddruk liep parallel aan de toegenomen concentratie van omega-3 vetzuren in de voeding.
De onderzoekers concludeerden dat visolie de bloeddruk kan verlagen.
The force with which blood is pressed against blood vessel walls represents the measurable blood pressure.
The level of our blood pressure is directly dependent on various factors, in particular on the pumping force of the heart, the blood volume, and the elasticity of the blood vessels.
Hypertension is a chronic medical condition in which the blood pressure in the arteries is persistently elevated. It can be caused by a too strong pumping function of the heart – which generally leads to an increased upper (systolic) blood pressure value. More frequently, the lower (diastolic) blood pressure value is elevated, a condition that is generally caused by a “spasm” (contraction) of the (smooth) muscle cells of the artery walls, causing the narrowing of the blood vessel diameter and the rise of the (diastolic) pressure. The most frequent cause of this artery spasm is a chronic deficiency of micronutrients in billions of artery wall cells.
If high blood pressure conditions persist for a long time, they can lead to damage in other organs, including strokes, coronary heart disease, failure of the kidneys, eyes and other organs.
Bønaa KH, Bjerve KS, Straume B, Gram IT, Thelle D.
Effect of eicosapentaenoic and docosahexaenoic acids on blood pressure in hypertension. A population-based intervention trial from the Tromsø study.
N Engl J Med. 1990 Mar 22;322(12):795-801.


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