Major medical sources state B12 shots do not boost energy or cause weight loss unless you are deficient
[12] [33] He later said, "I actually started weight training when I was 15, but I'd been participating in sports, like soccer, for years, so I felt that although I was slim, I was well-developed, at least enough so that I could start going to the gym and start Olympic lifting." [24] His official website biography, however, states that "at 14, he started an intensive training program with Dan Farmer, studied psychology at 15 (to learn more about the power of mind over body) and at 17, officially started his competitive career." [34] In a 2001 speech, he said, "My own plan formed when I was 14 years old
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