Shredz Fat Burner for Women is, as the name implies, a fat-burner by Shredz geared toward women. The formula contains a mix of stimulant and non-stimulant ingredients, some of which have direct fat-burning implications…[Skip to the Bottom Line]
Choline, once inside the body, is converted into the neurotransmitter Acetylcholine which is associated with many functions including (but not limited to) memory, attention, and muscle control.
Choline Bitartrate supplementation has been shown to reduce bodyweight while preserving strength in female Judo athletes but the dose present in Shredz Fat Burner for Women (100mg) is nowhere near that which was used in this study.
ALPHA LIPOIC ACID:
Alpha Lipoic Acid has many implications as it is a versatile anti-oxidant, but we’ll focus on the weight-loss implications here.
A 2009 study from the “Journal of Physiology and Biochemistry” found that ALA supplementation significantly decreased appetite in rats fed a high-fat diet, resulting in less weight gain than rats fed the same diet without ALA. These results indicate that ALA may be able to influence weight-loss beyond appetite suppression.
However, another 2009 study (using similar methods as the first one) noted that the weight-loss in the ALA group was not significantly different than the group who consumed the same diet without ALA, indicating that reduced appetite was the predominant reason for weight loss.
A 2011 study, published in the “American Journal of Medicine” found that obese individuals who consumed 1800mg of ALA daily for 20 weeks experienced moderate weight loss compared to the control group.
So, while ALA may be an effective weight-loss agent at high enough doses, Shredz Fat Burner for Women contains nowhere near what has been used clinically for weight-loss. So, it’s unclear how effective it really is in this case.
Theobromine is a chemical relative of Caffeine but, unlikely Caffeine, it remains under-researched, especially with regards to fat-burning potential. Preliminary studies indicate that Theobromine is a cardiac stimulant, but it does not appear to have psychoactive effects like Caffeine (i.e. energy).
Theobromine may contribute in some way to the overall effect of Shredz Fat Burner for Women, but we wouldn’t consider it a particularly important ingredient.
Carnitine is an amino acid that is heavily involved with the metabolism of fat for energy. It is required for the proper transport of fatty acids in the mitochondria, where they are oxidized (burned) for energy through the process known as “beta-oxidation”.
Carnitine deficiency has been shown to hinder fat-burning capacity, but studies investigating whether excess Carnitine intake (i.e. supplementation) can burn-fat haven’t been very encouraging thus far.
Although Carnitine supplementation (1g/day) has been shown to increase fatty acid oxidation rates in humans without Carnitine deficiency, it has failed to induce weight-loss in rats, as well as moderately obese women.
Carnitine does have mechanisms by which it may stabilize the fat-burning process in individuals who are Carnitine deficient (unlikely if you eat enough protein), but is unlikely to actually burn fat, especially at whatever negligible dose is present in Shredz Fat Burner for Women.
Guggulsterone is generally alleged to favorably influence Thyroid function, as supplementation has been shown to enhance iodine uptake and thyroid function in mice. However, no human studies have confirmed these effects.
As with some of the other ingredients in the Shredz Fat Burner for Women formula, Guggulsterone is not particularly effective.
Synephrine acts as a beta-receptor agonist, directly inducing lipolysis and allowing for more fat-burning than would otherwise normally occur.
Supplementation with 50mg has been shown to increase metabolic rate in humans without affecting blood-pressure or heart rate.
Although Shredz does not disclose the amount of Synephrine in the formula, it doesn’t take much to be at least somewhat effective.
Yohimbine acts as an alpha(2) receptor antagonist, meaning it inhibits the receptor responsible for blocking lipolysis (breakdown of fat). By blocking the action of this receptor Yohimbine allows for more lipolysis than would otherwise be possible from exercise.
A 2006 study, published in “Research in Sports Medicine”, found that Yohimbine supplementation (20mg/day) induced relatively significant fat loss in athletes (soccer players), but had no influence on measures of exercise performance.
Yohimbine’s mechanism of action is complementary to other stimulant fat-burners such as Synephrine and Caffeine, so in the context of Shredz Fat Burner for Women it is an effective ingredient.
Cayenne contains the compounds, Capsaicin, which has been shown to increase in fat oxidation (relative to placebo) during low intensity exercise in healthy adult males.
Although it can be a somewhat effective fat-burning ingredient at certain doses, Shredz Fat Burner for Women contains a mostly likely too low to be particularly effective.
GREEN TEA EXTRACT:
Green Tea Extract, like Cayenne, can be effective as a fat-burner at high enough doses, but given its position in an already crowded proprietary blend, there is no way Shredz Fat Burner for Women contains enough.
We discuss the fat-burning implications of Green Tea Extract more in this article.
Although Caffeine possesses pro-fat-loss properties, the effects tend to fade with prolonged use, rendering it ineffective as a long-term weight loss solution on its own. However, when paired with other fat-burning stimulants, Caffeine can kick-start the fat-burning process, so it’s a useful addition to the Shredz Fat Burner for Women formula, although Shredz does not disclose the exact dose.
THE BOTTOM LINE:
Shredz Fat Burner for Women contains several ingredients that are either ineffective or under-dosed (just ineffective in this case). Any fat-burning potential is reliant solely on the stimulants (Yohimbine, Caffeine, Synephrine) which could easily be purchased separately for much less or found in another fat-burner with a better overall profile. We just don’t really see any reason to go with Shredz when there are far more superior fat-burners out there.
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