Launched in March 1899, Physical Culture, published by Bernarr Macfadden, contained dietary advice, weight training information, and an incredible collection of health-related articles. It continued to be published, with a number of name changes, until the early 1960s.
We also have Physical Culture from October 1899 to June 1902 in PDF format.
Volume 1, No. 8
Volume 3, No. 1 – 6