Trying to gain weight but tired of seeing no results? You eat more, train more, and put in the effort, but the scale barely moves.
Maybe what you need is not more effort, but one of the online personal trainers for gaining weight who can turn that effort into a structured plan. The right coach can guide your training, keep you engaged, track what is and isn’t working, and adjust your plan instead of leaving you to guess.
A good virtual weight gain coach should also understand where you’re starting from, what may be holding back your progress, what equipment you have access to, and what kind of support you actually need. Those details matter because the right coaching approach can vary depending on your starting point, training experience, and goals.
With those differences in mind, we selected 3 affordable online weight gain trainers on our platform, Happy Trainers, with rates ranging from US$3.75 to US$9.38/hour. Each brings a different combination of experience, qualifications, and coaching approach, giving you options to compare based on your needs and budget.
Below, you can compare their experience, coaching approach, pricing, and who each trainer may suit best.
Compare 3 Affordable Online Personal Trainers for Gaining Weight
Not sure which online personal trainer for weight gain fits your goals and budget? The table below gives you a quick look at the cheapest prices, best-fit situations, coaching focus, relevant background, and what makes each profile worth exploring. Use it to narrow down your options before exploring each virtual personal trainer for gaining weight in more detail.
| Coach | Price | Best If You... | Coaching Focus | Relevant Background | Why Read Their Profile? |
|---|---|---|---|---|---|
| Monireh Keramati | US$3.75/hour | Want to gain weight through strength training but are unsure how to progress | Exercise technique, progressive overload, and explaining how each exercise supports your goal | Strength & Conditioning coaching plus nutrition programming with a weight-gain approach | See how she supported a naturally slim client who struggled to gain weight |
| Farnaz Vahdani | US$9.38/hour | Treat nutrition-related factors as an important part of your weight-gain goal | Connecting training decisions with nutrition-related considerations and body-composition goals | Master’s in Sports Nutrition, ISSA Personal Trainer certification | See how she worked with a client whose health-related limitations complicated muscle gain |
| Marshal Hosseini | US$5.63/hour | Struggle to stay motivated or consistent with training over time | Communication, individualized coaching, and building a sustainable training process | Master’s in Sport Physiology plus additional training in Sport Nutrition | See how his coaching approach addresses the mental side of staying consistent |
Want to explore more options? Browse more affordable online personal trainers on Happy Trainers to compare coaches with different specialties, experience levels, and hourly rates.
Meet the Trainers: Who Could Fit Your Weight-Gain Goal?
Choosing a reasonably priced online weight gain trainer involves more than comparing hourly rates or certifications. What may matter more is how each coach approaches the different challenges involved in gaining weight, whether that means building strength, managing nutrition-related factors, or staying consistent when progress feels slow.
Our coaches at Happy Trainers bring different approaches to these challenges. Below, we take a closer look at their experience, coaching styles, and who may benefit most from working with each one.
1. Monireh Keramati: Best for Structured Strength Progression
If you train regularly but aren’t sure when to increase your weights or how to make your workouts more challenging, Monireh may be a good budget-friendly online personal trainer for gaining weight to consider. Her approach focuses on structured strength progression, with clear exercise explanations and regular feedback to help you understand how your training develops over time.
Explore Monireh’s profile and book a free 15-minute consultation to discuss your weight-gain goal, training setup, and what working with her could look like.
At a Glance
- Price: US$3.75/hour
- Relevant qualifications:
- BBF 3rd Degree Strength and Conditioning Coaching
- BBF Nutrition Programming with a Weight Loss and Weight Gain Approach
- May suit you if: You want step-by-step strength progression.
A Client Situation She’s Handled
Monireh shared the example of a client who was naturally very slim and had struggled to gain weight. Slow visible progress often caused the client to lose motivation and stop exercising.
Rather than focusing only on the workout itself, Monireh explained which muscles each exercise was targeting and how those exercises related to the client’s goal. Her program also incorporated supersets and progressive overload, increasing resistance when the client could handle it with good form.
period, the client gained approximately 4.41 lb (2 kg) per month while working toward greater muscle mass and strength. She notes that individual rates of progress vary, so this result should be viewed as one client’s experience rather than an expected outcome.
What Training With Monireh May Look Like
Monireh starts by looking at your goals, fitness level, training experience, movement needs, available equipment, and how much time you can realistically dedicate to exercise. She then uses the first week to see how you respond to the program and adjusts exercises, resistance, or difficulty where needed.
During live sessions, she pays particular attention to form, breathing, rest periods, and exercise technique. She also asks for your feedback as you progress and adapts the program if your strength, needs, or circumstances change.
Is Monireh the Right Fit for You?
Monireh may be the closest match if your main challenge is knowing how to increase your training load as you get stronger. If nutrition-related factors are a bigger part of your weight-gain challenge, Farnaz’s background may be more relevant.
2. Farnaz Vahdani: Best for Nutrition-Focused Support
If your weight-gain goal involves questions around nutrition, body composition, or factors beyond your workouts, Farnaz’s background may be particularly relevant. Her combination of personal training experience and sports nutrition education allows her to consider how training and nutrition-related factors can interact.
Explore Farnaz’s profile and book a free 15-minute consultation to discuss your weight-gain goal, training setup, and what working with her could look like.
At a Glance
- Price: US$9.38/hour
- Relevant qualifications:
- Master’s degree in Sports Nutrition
- ISSA Personal Trainer certification
- May suit you if: You want nutrition and training planned together.
A Client Situation She’s Handled
Farnaz shared the example of a client who had been training with her for about a year while managing several health-related challenges. One of the main difficulties was a kidney-related condition that affected protein loss and limited how much protein the client could consume, creating additional challenges for building muscle.
According to Farnaz, over the year the client gained approximately 3.97 lb (1.8 kg) of muscle mass and lost 7.28 lb (3.3 kg) of fat, while improvements were also observed in cholesterol levels.
This example shows the type of situation where weight gain may require more than simply increasing training difficulty. However, individual results can vary depending on a person’s starting point, health situation, nutrition, and consistency.
What to Ask Farnaz Before You Book
If you’re considering Farnaz for your weight-gain goal, use your free consultation to ask how she evaluates your starting point, structures live sessions, and adjusts training as you progress. You can also clarify whether she provides any support between sessions.
Is Farnaz the Right Fit for You?
Farnaz may be a closer match if nutrition is a major part of your weight-gain goal. At US$9.38/hour, she’s the highest-priced option on this list, so consider whether her background and coaching approach justify the additional cost for your needs and budget. If your main challenge is progressing your strength training step by step, Monireh may be a more suitable option.
3. Marshal Hosseini: Best for Motivation and Consistency
If staying consistent with training becomes difficult when progress feels slow, Marshal may be a cheap online personal trainer for gaining weight worth considering. His coaching approach places particular emphasis on communication, understanding the individual behind the goal, and adapting the training process to something the client can realistically follow.
Explore Marshal’s profile and book a free 15-minute consultation to discuss your weight-gain goal, training setup, and what working with him could look like.
At a Glance
- Price: US$5.63/hour
- Relevant qualifications:
- Master’s degree in Sport Physiology
- Additional training in Sport Nutrition
- May suit you if: You want a coach who gets to know you before planning your training.
A Client Situation He’s Handled
Marshal did not share a specific weight-gain transformation. Instead, he highlighted a challenge he has observed across clients: staying mentally engaged with training over time.
In his experience, people do not always stop training because the workouts are physically too difficult. They may become mentally tired or lose motivation over time. Marshal uses this insight to adjust how he supports each client.
What Training With Marshal May Look Like
Marshal’s approach focuses less on one specific training method and more on creating a process that considers your experience, preferences, and ability to stay consistent. His experience includes different types of training, such as cardio, weight training, and mobility work. He also draws on his own experience as an athlete to understand the effort and adjustments involved in different forms of exercise.
For someone pursuing weight gain, this flexibility may be useful when their training needs to adapt as their experience or circumstances change.
Is Marshal the Right Fit for You?
Marshal may be worth considering if staying engaged with training is more difficult for you than completing the workouts themselves. If direct weight-gain case evidence and structured strength progression matter more to you, Monireh may be more relevant. If nutrition-related factors are a bigger priority, Farnaz’s background may be a closer match.
💡 Looking for More Affordable Trainers?
These three coaches focus on different weight-gain challenges, but they aren’t your only options. If you’d like to compare trainers across other fitness goals, explore our affordable personal trainers under US$20/hour.
3 Weight-Gain Myths to Question Before Choosing a Coach
Some common weight-gain advice sounds simple, but it may not reflect an effective approach in practice. Before choosing a budget-friendly personal trainer for gaining weight, it helps to recognize three myths that could shape your expectations. We look at what research and evidence-based guidance say, then show how our online weight gain trainers challenge these myths through their coaching approaches.
Myth #1: “To Gain Weight, I Should Just Eat as Much as Possible”
The Myth: Gaining weight requires eating more, but that does not mean eating as much as possible without considering food quality or balance.
What the Evidence Says: The NHS guidance on healthy weight gain recommends gaining weight gradually by adding healthy calories, eating a balanced diet with protein sources, and using strength training to help build muscle. It also advises against relying on chocolate, cakes, and sugary drinks simply to gain weight.
What This Means When Choosing a Trainer: An online weight gain coach should offer more than simply telling you to “eat more.” A better fit is a coach who considers your training, starting point, and weight-gain goal together while staying within their professional scope on nutrition.
How Our Coaches Put This Into Practice: Farnaz’s background in sports nutrition allows her to consider weight gain from more than one angle. Her approach considers how training and nutrition-related factors work together when someone is trying to improve body composition.
Myth #2: “The Harder and More Often I Train, the More Muscle I’ll Gain”
The Myth: More exercises, harder sessions, and advanced techniques can seem like the fastest route to muscle gain.
What the Evidence Says: The ACSM’s 2026 resistance-training guidance emphasizes consistency and sufficient training volume while noting that more complex techniques do not consistently produce better results for the average healthy adult.
What This Means When Choosing a Trainer: When comparing reasonably priced online weight gain trainers, ask how they progress your training rather than how hard they can make it. A personal trainer for weight gain who adjusts exercises, volume, and difficulty to your experience can provide a more individualized approach than simply telling you to train harder.
How Our Coaches Put This Into Practice: Monireh’s approach focuses on structured progression rather than simply making workouts harder. By paying attention to technique and when to increase resistance, she emphasizes building strength in a controlled way.
Myth #3: “If I’m Not Gaining Weight, I Just Need a Better Workout”
The Myth: When the scale stops moving, changing your workout can seem like the obvious solution.
What the Evidence Says: The Cleveland Clinic guidance on being underweight explains that body weight can be affected by several factors beyond training, including food intake, difficulty absorbing nutrients, increased calorie needs, medications, and certain health conditions.
What This Means When Choosing a Trainer: A personal trainer for weight gain should not automatically respond to stalled progress with a tougher workout. Look for someone who first assesses your training history, current routine, progress, and relevant lifestyle factors before deciding what needs to change.
How Our Coaches Put This Into Practice: Marshal begins by getting to know each client, including their personality and individual circumstances, before making training decisions. He has also seen that clients can become mentally tired of training before they become physically tired, which is why he adjusts his support for each person.
What Can an Online Weight-Gain Trainer on Happy Trainers Help You With?
At Happy Trainers, you can choose an affordable online personal trainer based on your goals, budget, and preferred coaching approach. Through live 1-on-1 video sessions, your coach can guide your exercises, provide feedback, and adjust your training as you progress.
Before committing to paid sessions, you can book a free 15-minute consultation with a coach you’re interested in. The table below helps you identify the support you need and the questions worth asking to see whether that coach is the right fit.
| If You're Struggling With... | How an Online Weight-Gain Trainer May Help | What to Ask in Your Free Consultation |
|---|---|---|
| Not knowing how to structure or progress your workouts for muscle gain | Build a strength-training plan based on your experience and equipment, then adjust resistance and exercises as you improve. | How will you decide when I'm ready to increase my weights or change exercises? |
| Losing motivation when progress feels slow | Help you set realistic training goals and review your progress beyond changes on the scale. | How would you help me stay consistent if I don't see results quickly? |
| Not knowing how nutrition fits into your weight-gain goal | Help you understand how training and nutrition-related factors connect, while staying within the trainer's professional scope. | How do you consider nutrition when planning training for someone who wants to gain weight? |
| Feeling like a one-size-fits-all coaching style doesn't work for you | Adapt the training process and communication style to your preferences, experience, and feedback. | What would you change if I found your initial training approach difficult to follow? |
Before You Book
Choose one or two questions that reflect your biggest challenges and ask them during your free consultation. Pay attention to whether the trainer gives specific explanations and asks about your starting point rather than offering the same plan to everyone. If your difficulty gaining weight may be related to a medical condition or unexplained weight loss, seek advice from a qualified healthcare professional.
Final Thoughts
The right online personal trainer for gaining weight depends on what’s holding back your progress:
- If you’re already training but aren’t sure how to increase your weights or make your workouts more challenging, Monireh may be your best starting point.
- If nutrition-related factors are a major part of your goal, Farnaz’s sports nutrition background may be more relevant, although her rate is higher at US$9.38/hour.
- If your biggest challenge is staying consistent when progress feels slow, Marshal’s communication-focused approach may suit you. However, unlike Monireh and Farnaz, he hasn’t shared a specific weight-gain client example, so it’s worth asking about his experience with goals similar to yours.
Once you’ve narrowed down your options, choose an affordable online personal trainer and book a free 15-minute consultation. Ask how they would approach your first four weeks of training, what progress they would track, and when they might adjust your plan. Their answers can help you decide whether their coaching approach fits your needs before committing to paid sessions.
Sources
- NHS: Healthy ways to gain weight
- American College of Sports Medicine (ACSM): 5 Things to Know About Creating an Effective Resistance Training Plan (2026)
- Cleveland Clinic: Underweight: Symptoms, Causes & Health Risks
