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16.02.2012


Yet another animal study: goji boosts endurance capacity

A week or so ago we wrote about a Chinese animal study in which mice ran for longer when they were given sugar-chains from goji berries Lycium barbarum mixed with their food. In an obscure scientific journal we came across another animal study that suggests that goji may be an interesting supplement for endurance athletes. This study was done in China too.

In 2009 Li-qin Yao and Feng-lin Li published an article in the African Journal of Agricultural Research, reporting the results of a study in which they had given mice goji extract [1:13] mixed with their food every day for four weeks. The extract they used consisted of sugar chains.

Each day the animals were given either nothing [C], 100 mg [LD], 200 mg [MD] or 400 mg [HD] extract per kg bodyweight.

If you convert this low amount to give a conservative estimate for an adult human male weighing 90 kg, then you'd need about 900 mg per day. To obtain that amount you'd need to eat 12 g dried goji berries daily. They're available in every health food shop or supplements store.


Yet another animal study: goji boosts endurance capacity


Yet another animal study: goji boosts endurance capacity


Yet another animal study: goji boosts endurance capacity


Yet another animal study: goji boosts endurance capacity


The study does not reveal exactly what goji does in the muscles, but it looks as though the substance stimulates the burning of fatty acids and helps the muscle cells to use glucose and glycogen more sparingly.

Source:
African Journal of Agricultural Research Vol. 5(16), pp. 2153-2157, 18 August, 2010.

More:
Goji polysaccharides enhance endurance 03.02.2012
Goji berries are anti-estrogenic 07.06.2010