What You Actually Find On r/Weightgain Versus What The Algorithm Shows You
The subreddit r/weightgain is a complicated place. Most people landing on it have never read a single comment past the top post of the day. They see the titles, they see the upvote counts, and they assume they understand what the community is about. You don't. Not until you've spent a few months watching the same three threads get crossposted every Tuesday and seeing new users get eaten alive by advice that sounds supportive but is actually dangerous. The community exists at the intersection of fetish content, genuine body positivity seeking, and people who are quietly struggling with disordered eating patterns on both sides of the scale. That last part is the one nobody talks about openly. The weight gain side has its own eating disorder pathology just like the weight loss side does. The difference is the social reinforcement structure. In r/weightloss, the reinforcing behavior is restriction. In r/weightgain, the reinforcing behavior is excess. Both are unhealthy. Both get validated by the community in different ways. I spent about fourteen months lurking and then participating across both communities. I watched people go from casual posters to posting daily caloric logs to people who hadn't updated their posts in six weeks because they were hospitalized. The progression isn't linear. Some people land in these spaces during active crises. Others are just bored and curious. The community can't tell the difference from a screen.
Here's what happens when someone new joins r/weightgain expecting a supportive space and encounters the actual content. The top posts are almost always erotic or fetish-adjacent. The text-heavy posts about body image, mental health struggles, and genuine lifestyle changes get buried under content that gets upvoted because it's visually rather than substantively useful. A user asking "how do I gain weight healthily after my thyroid medication changed my metabolism" will compete for attention against a post that says "day 47 of my gain journey 23 pounds later" with nothing but a before and after photo and the caption "feed me." The former gets three upvotes. The latter gets three hundred. So the actual advice ecosystem in these communities is skewed. People looking for genuine help end up following recommendations from users whose primary motivation is validation, not health. I saw this repeatedly. Someone would ask about medical causes of involuntary weight loss and get replies suggesting they just eat more pasta. Not wrong advice in a vacuum, but completely inadequate when the underlying issue could be hyperthyroidism, malabsorption, or early-stage diabetes. The community doesn't have a filter for that because most of the regulars aren't medical professionals. They're people who gained weight and felt good about it, and they want to help others feel the same way. The mental health angle is where things get complicated. There's a real population of people in these subreddits who use weight change as a coping mechanism. For some, gaining weight was a way to feel safer in their bodies after trauma. For others, losing weight became an obsession that replaced whatever previous obsession they had. I know someone personally who lost eighty pounds over two years on a subreddit that encouraged extreme deficit approaches, then posted about how empty it felt and immediately started posting in weight gain communities. The community welcomed them back with open arms and dietary plans that involved eating six thousand calories a day. Both extremes were symptoms. Both communities reinforced the symptom rather than addressing the root cause.
What Actually Works If You're Looking For Genuine Support
If you're going to use Reddit for weight-related mental health support, you need a filter system. The default sort won't give it to you. You have to actively curate what you see. Start by searching for flairs or keywords that indicate health-focused discussion. Look for posts that mention consulting doctors, that share lab results, that ask specific questions about nutrition rather than asking for encouragement to keep eating. Those posts exist. They're just not at the top. The crossposting problem is real. Content from r/weightgain gets crossposted to r/fatpeoplehell and vice versa, and the comment sections become battlegrounds that serve nobody. I found that the most useful discussions happened in threads that stayed contained within one subreddit and were at least three weeks old, which meant the emotional volatility of a fresh post had settled. Old threads tend to attract people who are still actively participating in their health rather than people who are just reacting to something triggering. There's also a practical issue with anonymity. Reddit's structure rewards dramatic statements and extreme numbers because they get engagement. A post titled "I gained twelve pounds in three months and I'm so happy" will perform better than "I gained four pounds in six weeks following my doctor's advice and my bloodwork improved." The second post describes a healthier behavior. The first post gets the rewards. This distorts what new users perceive as normal progress. I've seen people benchmark their own health against gains of thirty or forty pounds in a single month and conclude they weren't trying hard enough, not realizing that the people making those claims were often already significantly overweight or using unhealthy methods to achieve rapid numbers.
Get the Full Details
The workaround I developed was to track down the users who posted responsible advice and follow their comment history. A single well-reasoned comment about the difference between muscle gain and fat gain, or about why rapid weight change is metabolically stressful, is usually from someone who's thought about this more than the average poster. Their other comments will show you whether they're consistently thoughtful or whether that one good post was an anomaly. This takes time. It's not efficient. But it's the only way to find signal in a space where the algorithm amplifies noise. One thing that surprised me was how many people in the weight gain communities were actually in recovery from weight loss disorders and hadn't processed it yet. They'd lost weight, felt shame about it from the community, and then swung to the opposite extreme without ever developing a sustainable relationship with food or their body. I watched this happen at least half a dozen times over fourteen months. The swing wasn't a cure. It was just a different form of the same obsession, dressed up as empowerment. If you're dealing with actual mental health issues around food and body image, Reddit should be a supplement to professional support, not a replacement. The communities can provide peer validation and shared experience, which matters. But they can't diagnose, they can't treat, and they often actively discourage people from seeking medical help because that conflicts with the narrative that personal willpower and community approval are sufficient. I've seen posts where someone mentioned seeing a therapist and got replies suggesting therapy was unnecessary if the community could help. That's not help. That's isolation with better branding.
The most useful subreddits I found for this topic weren't the big ones. They were smaller, moderation-heavy spaces where off-topic posts get removed quickly and where users are required to have some baseline knowledge before posting advice. Those spaces exist but you have to search for them. They don't appear in recommendation threads because the people running them don't want visibility. Visibility brings newcomers who haven't read the rules, and the mods spend more time moderating than supporting. There's also the issue of financial incentive. Some of the most vocal participants in these communities have affiliate links, merchandise, or Patreon accounts. That doesn't make their advice automatically wrong, but it does mean there's a conflict of interest that rarely gets disclosed. A user recommending a specific meal plan or supplement stack might be earning commission on every sign-up. The community culture treats this as entrepreneurship rather than what it often is: monetized influence without accountability. The reality is that these subreddits reflect the same fractures you see everywhere else online. They amplify extremes, they reward engagement over accuracy, and they create echo chambers that feel like support groups until you need actual support. The people who benefit the most are the ones who can use them selectively, who can find the specific threads and specific users that align with evidence-based approaches, and who can step away when the community dynamic becomes harmful. That's a skill most people don't have when they first arrive, which is why the onboarding process in these spaces tends to radicalize people toward whichever extreme the current top posts are promoting.
