TestoFuel is an all-natural testosterone booster that was created for athletes and bodybuilders who don’t want to use anabolic steroids with fast results. TestoFuel claims they can help raise your testosterone levels, increase muscle size, and help lower body fat.
All the ingredients in TestoFuel are known to help increase levels of testosterone as well as help with stamina, endurance, and muscle growth.
Because TestoFuel is formulated to boost your natural, free testosterone, there is a wide range of benefits of having a higher testosterone level. Raising your natural testosterone levels can have the following benefits:
The bottom line is that no matter how hard you diet or exercises, sometimes without the right levels of testosterone, you just won’t see results. Having higher levels of natural testosterone allow you to increase strength, improve mood, and reduce stubborn body fat, specifically around the stomach area.
TestoFuel contains ingredients that help you release your own natural testosterone.
One of the main ingredients found in TestoFuel is D-Aspartic Acid. D-Aspartic Acid (D-AA) is an amino acid that promotes muscle mass. It works by way of regulating growth hormone and testosterone. Studies show that D-AA can help raise your anabolic hormone levels by 45% in as little as 13 days. With a more extended usage time of 90 days, D-Aspartic Acid can raise your anabolic hormone levels over 60%. 
Testosterone can increase growth hormone levels, which is essential for bodybuilders and athletes as growth hormone is what increases protein synthesis that results in muscle growth. In fact, studies show that low levels of testosterone and growth hormone are detrimental to older men who want to gain muscle and stamina. Studies also show that when supplemental testosterone and growth hormone are given to older men, it helps with their body composition, endurance, and muscle performance. 
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TestoFuel is also popular for its ability to raise libido. Libido and testosterone are connected, and studies show that there is a clear link between libido and testosterone. In fact, testosterone therapy is used for those who have low libido and for men who are losing muscle mass. It’s not a surprise that TestoFuel can also help your libido since it contains oyster extract. Oyster extract is popular among bodybuilders because it is one of the best sources of zinc (10x more than the amount you’d find in beefsteak).
Oyster extract is one of the main ingredients found in TestoFuel. known to help with male reproductive function, stamina, and helps keep your testosterone receptors firing. The most significant benefit of oyster extract is that it can inhibit aromatization, which is involved in the process of your testosterone converts into estrogen. 
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4. M M Hamdi. et al Dihydrotestosterone stimulates amino acid uptake and the expression of LAT2 in mouse skeletal muscle fibres through an ERK1/2-dependent mechanism J Physiol. 2011 Jul 15; 589(Pt 14): 3623–3640.
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6. Ito A. et al Menaquinone-4 enhances testosterone production in rats and testis-derived tumor cells. Lipids Health Dis. 2011 Sep 13;10:158.
TestoFuel is recommended for those who want to increase or sustain lean body mass (aka muscles). TestoFuel is also perfect for older men who want to boost their testosterone levels naturally without having to take synthetic anabolic steroids. It is also recommended for athletes and bodybuilders who want to get max gains faster and safely.
Yes! This is one of the few natural testosterone boosting supplements that women can take because it’s carefully formulated to push your natural testosterone levels to it’s max potential. That means it doesn’t overload your body the way synthetic anabolic steroids might.
You should feel some benefits within a few days. Still, as it takes time for your testosterone levels to rise, TestoFuel recommends a daily regimen of four capsules daily for two months to see maximum benefits. With regular exercise and a proper diet, you should see results faster.
You can take TestoFuel with other supplements such as creatine, protein shakes and other testosterone boosters.
Because TestoFuel is not a synthetic anabolic steroid, but instead a natural testosterone booster it only contains all-natural ingredients that have been proven beneficial to boosting testosterone. Unless you are allergic to any of the ingredients, you should not have any side effects.
Here is the exact list of ingredients:
D-Aspartic Acid, Vitamin D3, Vitamin K2, Oyster extract, Ginseng, Vitamin B6, Fenugreek, Magnesium, & Zinc