I'm building a diet directory on my weight loss site, and the structure for those diet descriptions will be similar (the actual content will be unique though).
Here are some examples of the similarities that the diet descriptions will have: how does the diet work? will be in every diet description. Also the title for every diet will be something along the lines of Diet X reviews and information, with the reviews and information part being the same across all diet descriptions.
Can having many titles that are similar to each other in that way, and also having some
h2 headings that are identical across articles hurt the SEO rankings of those articles?