No, there's very little helium produced for the same reason that fusion generates massive amounts of energy from very tiny amounts of fuel. In fact there'd be m

No, there's very little helium produced for the same reason that fusion generates massive amounts of energy from very tiny amounts of fuel. In fact there'd be more helium produced in the nuclear reactor generating the tritium than there would be in the fusion reactor burning it. Eventually commercial nuclear fusion reactors will generate their own tritium from a lithium blanket but for now that's all from fission reactors.