Vintage Boost Ingredients
Tribulus Fruit Extract (500mg)
Tribulus fruit extract is included for its supposed energy and libido-boosting properties, but there is no evidence to support this. There has, however, been a study conducted on elite rugby players that showed tribulus does not affect testosterone levels. [1]
Maca Root Powder (450mg)
Maca root powder is also included to boost energy, mood, and libido but the required dose for these benefits is, at a minimum, 1,500mg so Vintage Boost's 450mg isn't likely to have the desired effects. [2]
PrimaVie® Shilajit Extract (50mg)
Clinical studies have shown that shilajit extract significantly increases testosterone levels [3] and promotes muscle growth and recovery. [4] The only problem is those studies concerned daily doses of 500mg, meaning Vintage Boost doesn't contain nearly enough.
D-Aspartic Acid (3,000mg)
Perhaps the best thing about Vintage Boost is its sizable dose of D-aspartic acid (D-AA), which is proven to promote the synthesis and release of testosterone. [5]
It is possible to have too much of a good thing though. Research suggests the testosterone boosting effects of D-AA plateau after a few weeks at doses over 2,000mg. As Old School Labs note, therefore, it is necessary to cycle Vintage Boost to maintain its benefits long-term.
Vitamin D3 (50mcg)
Another welcome addition, vitamin D3 supports numerous vital functions in the body, including testosterone production. [6] However, these effects are most pronounced in individuals already deficient in vitamin D. Those with reasonable levels won't notice a difference.
Vitamin B6 (5mg)
Vitamin B6 is found in many fresh vegetables, and its inclusion is never going to be a bad thing. One study in rats indicates it may boost testosterone levels but, as with the vitamin D study, this result is only seen in subjects deficient in vitamin B. [7]
Magnesium (100mg)
Men with low magnesium levels tend to be low in testosterone, and this essential mineral also supports metabolic function, cardiovascular regulation, and athletic endurance.
Zinc (10mg)
Another essential nutrient for the body, zinc plays a crucial role in testosterone production. However, as with quite a few of Vintage Boost's doses, it is a little on the low side and is only likely to help those already zinc deficient. [8]
References
1. Rogerson, S., Riches, C. J., Jennings, C., Weatherby, R. P., Meir, R. A., & Marshall-Gradisnik, S. M. (2007). The effect of five weeks of Tribulus terrestris supplementation on muscle strength and body composition during preseason training in elite rugby league players. Journal of strength and conditioning research, 21(2), 348–353. https://doi.org/10.1519/R-18395.1
2. Dording, C. M., Fisher, L., Papakostas, G., Farabaugh, A., Sonawalla, S., Fava, M., & Mischoulon, D. (2008). A double-blind, randomized, pilot dose-finding study of maca root (L. meyenii) for the management of SSRI-induced sexual dysfunction. CNS neuroscience & therapeutics, 14(3), 182–191. https://doi.org/10.1111/j.1755-5949.2008.00052.x
3. Pandit, S., Biswas, S., Jana, U., De, R. K., Mukhopadhyay, S. C., & Biswas, T. K. (2016). Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia, 48(5), 570–575. https://doi.org/10.1111/and.12482
4. Keller, J. L., Housh, T. J., Hill, E. C., Smith, C. M., Schmidt, R. J., & Johnson, G. O. (2019). The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levels. Journal of the International Society of Sports Nutrition, 16(1), 3. https://doi.org/10.1186/s12970-019-0270-2
5. Topo, E., Soricelli, A., D'Aniello, A., Ronsini, S., & D'Aniello, G. (2009). The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reproductive biology and endocrinology : RB&E, 7, 120. https://doi.org/10.1186/1477-7827-7-120
6. Pilz, S., Frisch, S., Koertke, H., Kuhn, J., Dreier, J., Obermayer-Pietsch, B., Wehr, E., & Zittermann, A. (2011). Effect of vitamin D supplementation on testosterone levels in men. Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme, 43(3), 223–225. https://doi.org/10.1055/s-0030-1269854
7. Symes, E. K., Bender, D. A., Bowden, J. F., & Coulson, W. F. (1984). Increased target tissue uptake of, and sensitivity to, testosterone in the vitamin B6 deficient rat. Journal of steroid biochemistry, 20(5), 1089–1093. https://doi.org/10.1016/0022-4731(84)90348-0
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