Seed oils bet­ter for low­er­ing choles­terol

Gulf Times Community - - BODY & MIND -

Oils ob­tained from seeds such as sun­flower, rape­seed, saf­flower and flaxseed could be more ben­e­fi­cial in low­er­ing bad choles­terol, known to dam­age ar­ter­ies, and in­crease the risk of heart dis­eases and strokes, new re­search claims.

Many of the pre­vi­ous stud­ies have es­tab­lished that mono- and polyun­sat­u­rated fats are bet­ter for blood lipids than sat­u­rated fats swapped out one food source at a time, mak­ing it hard to tell which of a plethora of veg­etable oils might be most ben­e­fi­cial.

How­ever, the study, led by Lukas Sch­wing­shackl, a re­searcher at the Ger­man In­sti­tute of Hu­man Nu­tri­tion, in­di­cated that solid fats like but­ter is the worst choice for LDL. The best al­ter­na­tives are oils from seeds.

“Sun­flower oil, rape­seed oil, saf­flower oil and flaxseed oil per­formed best,” Sch­wing­shackl said.

“Some peo­ple from Mediter­ranean coun­tries prob­a­bly are not so happy with this re­sult, be­cause they would pre­fer to see olive oil at the top. But this is not the case,” he noted.

For the study, pub­lished in the Jour­nal of Lipid

Re­search, the team con­ducted a meta-anal­y­sis of 55 stud­ies that as­sessed the ef­fects of con­sum­ing the same amount of calo­ries from two or more dif­fer­ent oils on par­tic­i­pants’ blood lipids.

They com­pared the ef­fect of two or more oils or fats on pa­tients’ low-den­sity lipopro­tein (LDL), or bad choles­terol or other blood lipids like to­tal choles­terol, High-den­sity lipopro­tein (HDL) or good choles­terol, over at least three weeks.

Saf­flower oil showed the high­est sur­face un­der the cu­mu­la­tive rank­ing curve (SUCRA) value for LDL-choles­terol (LDL-C)(82 per­cent) and to­tal choles­terol (90 per­cent), fol­lowed by rape­seed oil (76 per­cent for LDL-C, 85 per­cent for TC).

Con­versely, palm oil (74 per­cent) had the high­est SUCRA value for tri­a­cyl­glyc­erols (TGs), and co­conut oil (88 per­cent) for HDL­c­holes­terol (HDL-C).

De­spite lim­i­ta­tions in the data, our find­ings are in line with ex­ist­ing ev­i­dence on the meta­bolic ef­fects of fat and sup­port cur­rent rec­om­men­da­tions to re­place high sat­u­rat­ed­fat food with un­sat­u­rated oils, Sch­wing­shackl noted.– IANS

RE­LI­ABLE: Oils ob­tained from seeds such as sun­flower, rape­seed, saf­flower and flaxseed could be more ben­e­fi­cial in low­er­ing bad choles­terol.

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