Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
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04.03.2012 |
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Eat citrus fruit for strong bones
Study
Sex hormones like estradiol and testosterone play a prominent role in bone health.
Rats in the control group were also operated on, but their hormone production was not interfered with [Sham].
Some of the ORX rats were then given freshly squeezed orange juice to drink for 60 days [OJ; ORX+Orange]. Another group were given freshly squeezed grapefruit juice [GJ; ORX+Grapefruit]. The researchers squeezed the juice themselves, and there was a reason for this: analyses show that citrus fruits contain a number of bioactive substances. These are the limonoids, and they are found in juice you squeeze yourself, but not in ready-made juices you buy in cartons in the supermarket.
Results
Stopping the production of the sex hormones made the bones weaker. They took less force (N) to break, and they broke more quickly. Supplementation with orange juice and grapefruit juice reduced this deterioration.
When the researchers examined the rats' urine they discovered that there was less hydroxyproline in the urine of the OJ and OG group rats. The concentration of the enzyme ALP in the blood of these two groups was also lower. Both of these are indicators of less bone decay.
Conclusion
Source:
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