increase muscle

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  • cropje_jnr

    Senior Member
    English - Australia
    You can say 'increase my muscle size/bulk'. I do not think 'to increase (my) muscle' would sound natural, however. Here are some idiomatic expressions you may find useful:

    ... to bulk up
    ... to get buff (fam.)
    ... to get bigger muscles
    ... to build up my muscles
    ... to improve my muscle mass.
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