Let’s look at another example. Maybe you wrote an long-form guide all about Instagram Marketing called “Top Instagram Marketing Strategies.” You’re mainly targeting the search phrase: “Instagram Marketing Strategy”. Even just a couple of years ago this content would likely rank highly for a vast spread of related queries - now, not so much. Instead of trying to rank for everything with one large guide, you could break out parts of it into smaller, individual blog posts to help rank for more granular queries that come with differing intent. 
Search engines are getting better and better at understanding search intent, which means they are providing  more unique and granular search results that better address the user’s specific ask. The content on your website needs to provide a solution to a user’s problem, whether it’s a long-form article or a one-word answer. In the most recent HubSpot Research survey, 64% of marketers actively invest in SEO. While I’d like to see that number increase significantly, I like that SEO is becoming more of a priority across all industries.
Specifics: Be as specific as you can with your recommendations. For example if you’re suggesting partnering with meal home delivery sites, find out which ones are going to provide the most relevant info, at what cost if possible, and what the ideal partnership would look like for content and SEO purposes. Even provide contact information if you can.
2. Targeted Keyword Discovery: Ideally you’ll want to do keyword research based on what the audience wants, not solely on what content the site already has (or plans to have sans audience targeting), which may be limited. I can do keyword research on health conditions and drugs (content I have on my site) and determine what the general population is searching for and optimize my current content, or I can cast my net wide and look at what my target audience wants first, then do my keyword research. You may find there are needs that your site is not meeting. Knowing my senior audience is interested in primarily in prescription drug plans and cheap blood pressure medication, I can first make sure I’m providing that content, and then further determine the top keywords in these areas (in the next article Step 2), and use those terms in relevant and high visibility areas on my site.
This is excellent and should be intuitive for marketers (and SEO pros are marketers!) but we often take the short cut and neglect critical details. What would also reinforce the strategy is way of providing solid projections for SEO (these could be based on industry trends and statistics). Clients now ask for ways to calculate ROI and they need numbers to get budget approvals. Increase in traffic by X,  increase in qualified traffic and leads, conversions etc, some way of quatifying the expected return.
Great and impressive article! Sounds good, but looks good for blogs where you are giving usefull information to readers, like strategies, advices etc. But unfortunately I can now hardly imagine how I will apply it in the gambling industry, where people are just looking for bonuses, but not for useful content. But I will try, will try to improve firstly user intent.
As I had a teacher at school who was always really picky on how to draw conclusions I must say that the conclusions you drew for your health situation might be true, but dangerous. For example: If slightly more women than men suffer from health deseases it could be wise to write the information toward women. But, if you take search behaviour into account thing could look a lot different: It might turn up that men search more than women or that (senior) men are more present on the net than women.

Start obsessing over search from your users’ point of view. Drill into their intent. Historically, the name of the SEO game was finding the intersection where high volume and low competition keywords meet. That is still true, but the beauty of the improvements in natural language processing (NLP) is our ability to find pockets of intent around those keywords. 
Wow, brilliant strategy! I am thrilled to learn something new and effective that isn’t “black hat”. And yes, this does require work, but that’s precisely what it should require. I would rather see sites ranking high because they contribute terrific content (i.e. useful/interesting infographics) to their niche vs. the person exploiting the latest loophole. But that’s just my opinion 🙂