7 Best Vitamins for Weight Gain in 2024

We’ve made this list of the best vitamins for weight gain, to help those bulking looking to maintain optimal nutrition. Most people eating in a caloric surplus should be able to get sufficient vitamins and minerals, but this isn’t always the case. 

 If you have any malabsorption conditions or rely on a narrow range of foods, you may struggle with vitamin intake, and benefit from a multivitamin when looking to gain weight. Especially with deficiencies likely affecting your ability to train and put on muscle, ensuring you’re getting adequate micronutrient intake is necessary.

Keep in mind that when we mention vitamins that help with weight gain, they will only make a major difference if you’re deficient in anything.

Our team of certified nutritionists and professional athletes has reviewed 15 products and the best ones made it to this list. We’ve based our evaluations on 5 key factors and we have spent 4 weeks testing most of these products out. Additionally, we have also analyzed hundreds of online user reviews. Feel free to share your experiences in the comments section because our list is regularly updated.

Top 7 Best Vitamins for Weight Gain Reviewed

1. Nature Made Multi for Him – Top-Pick
2. NATURELO One Daily Multivitamin for Women – Runner-Up
3. Kirkland Signature Daily Multi – Best USP-Verified
4. Sentry by 21st Century
5. Whole Food Multivitamin by Kaged – Best organic + Informed Sport Certified
6. VITA-XT™ BLACK by Jacked Factory
7. Modern Multi by Ora Organic – Vegan with Moderate Iron

Product	Total	Overall Micros Breakdown	Capsules / Tablets per Serving	Nutrition Label Transparency	Third-Party Testing	Price / Quality
Nature Made	49.5	9.5	10	10	10	10
NATURELO	49	10	10	10	9.5	10
Kirkland	49	9.5	10	9.5	10	10
21st Century	49	9.5	10	10	9.5	10
Kaged	48	9.5	9.5	10	10	9
Jacked Factory	47	9	10	10	9	9
Ora Organic	46.5	8.5	9.5	10	9.5	9

Our choice for the best multivitamin for weight gain is Nature Made’s Multi For Him. Containing high doses of its ingredients, this is an optimal supplement for anybody looking to boost their micronutrient intake – all at a budget-friendly price.  

Many of the micronutrients here are dosed at slightly more than 100% DV. While this likely isn’t fully necessary, if you’re an especially large person, a higher dose multivitamin may be ideal for you. It’s worth noting that this supplement doesn’t contain any iron if this is something you’re looking for. 

This is a one-a-day supplement, making it convenient to take every day. And with a package size of 90 tablets, each bottle should last you about 3 months. 

Finally, at only ~$0.14 per serving, this is one of the best budget-friendly supplements on our list. While it’s not quite the cheapest multivitamin available, it’s still an exceptional supplement at a great price.

Next on our list of vitamins for gaining weight is Naturelo’s women’s daily multivitamin. As you can probably tell from the name, Naturelo is perfect for women. However, this will still be a great choice for men looking for a more moderate option. 

All of the vitamins included here are dosed at a perfect 100% DV, which will be optimal for most people. There’s a wider range when it comes to minerals, with many falling between 50-91% DV. This supplement includes iron at a dose of 50% DV, which will be ideal for many women, especially those who struggle with iron intake. 

Similar to Nature Made, this is a one-a-day supplement, optimal for people who don’t enjoy swallowing multiple capsules a day. With 120 servings per container, this will also last you several months with daily use. 

At ~$0.29, this is a slightly more expensive supplement than our top pick, although it’s still far from the most expensive multivitamin supplement available.

Next up on our list of important vitamins for helping with weight gain is Kirkland Signature’s Daily Multi, which is a brand known for delivering a wide range of high-quality products with great value for money. Offering one of the cheapest multivitamins available, this product is no exception. 

The ingredient doses here mostly fall around 100%. While almost all the minerals – including iron – are dosed at right around 100% DV, the vitamins fall in a wider range, with many being between 100-200% DV. It’s worth noting that Vitamin D is only dosed at 50% DV, while most of the other supplements on our list include at least 100% of this vitamin.

Similar to our top 2 picks, this is a one-a-day supplement. While our top 2 picks have decently large containers respectively, they are blown out of the water by Kirkland which has 500 servings per container. 

As mentioned, at only ~$0.05 per serving, this is easily one of the most budget-friendly multivitamins on the market. However, this isn’t quite the cheapest supplement we’ll be covering, as our next option is narrowly cheaper.

While Kirkland is undeniably a great budget option, it’s narrowly beaten out in price by 21st Century’s Sentry supplement. On top of its extremely low price, Sentry is still a high-quality multivitamin perfect for anybody in need of a multivitamin when trying to gain weight.

Most vitamins and minerals included here have been dosed right around 100% DV, although there are some dosed slightly higher or lower. It’s worth noting that this is one of several supplements on our list to include 100% DV of iron, perfect for most women and those looking to prioritize this micronutrient in their diet. 

Like most of the supplements on our list, each serving of Sentry is only 1 tablet. Also, with 300 servings per container, this supplement does have a large amount of total servings, although not quite as many as Kirkland. 

Finally, as mentioned, at only ~$0.04 per serving, this is the cheapest multivitamin we could find. This makes it ideal for anybody looking to gain weight without blowing their budget on expensive supplements.

Next on our list of weight gain vitamins is Kaged’s Whole Food Multivitamin which is easily the most expensive supplement on our list. However, despite its hefty price tag, Kaged delivers one of the best all-around formulas available out of the countless multivitamins on the market. 

This is also an Informed Sport Certified supplement, making it great for any professional athletes being tested for banned substances. 

A major pro for Kaged is that nearly all its vitamins and minerals are dosed perfectly at 100% DV. This includes iron, Vitamin D, Vitamin B12, and many more. On top of this, Kaged uses a whole foods-based, all-organic formula, which in our opinion, is the best multivitamin formula on the market. 

Each serving of this supplement is 2 capsules, and Kaged has the smallest package on our list with only 30 total servings. 

Also, if you’re looking for a budget-friendly supplement, Kaged may not be for you. Each serving will cost a whopping ~$1.17. However, if you’re alright with paying a premium, Kaged may very well be one of the best multivitamins money can buy.

Next is Jacked Factory’s Vita-XT supplement, which is the only option on our list to come in powdered form. While not ideal for everybody, this will be great for those who would prefer to take vitamins as a flavored beverage. This is also the only option we’ll be covering to contain Ashwagandha, which is a potentially beneficial herbal ingredient. 

In terms of formula, Jacked Factory is the first option we’re covering to contain several unnecessary megadoses. While many of its vitamins are dosed at or around 100%, B12 is dosed at a ridiculously high 10417%. Also, it’s worth noting that this supplement is limited in its doses of minerals, not containing any iron, zinc, magnesium, and more. 

This is also the only supplement on our list to contain the herbal ingredient ashwagandha dosed at 300mg per serving. This supplement may reduce cortisol, in turn improving sleep quality and boosting testosterone. However, long-term effects aren’t very well known, and you aren’t able to control the dosage when it's included in a supplement like this. So, even if you’re interested in this supplement, you may prefer to take it on its own instead of as part of a multi-component supplement. 

This is a flavored powder supplement that comes in 2 flavors: fruit punch and strawberry lemonade. While most people will prefer capsules or tablets, this may be ideal for those looking for a vitamin-rich flavored beverage to drink throughout the day. Keep in mind that at 30 servings per container, this is much lower than most of the other options on our list. 

Finally, at ~$0.67 per serving, this is one of the more expensive options on our list. While it’s still only about half as much as Kaged, it’s still many times more expensive than budget options like Kirkland or 21st Century.

Closing off our list of multivitamins for weight gain is the Modern Multi supplement from Ora Organic. While several supplements on our list are vegan-friendly, it’s worth noting that this is the first option we’ve covered to come from a completely vegan brand. 

In terms of micronutrient doses, this is one of the more moderate supplements on our list. Most vitamins and minerals are dosed around 25-50% DV, except Vitamin D, Vitamin B12, Biotin, and ZInc, which are all dosed between 100-250%. This would be a good choice for those who want a moderate-iron supplement, as this option contains 35% of your DV. 

Each serving is 2 capsules and each package contains 30 total servings, making this a similar option to Kaged in these 2 factors.

At ~$0.75 per serving, this is the second most expensive product on our list. While still notably cheaper than Kaged, it’s still certainly a premium-priced supplement.

Do Vitamins Really Affect Weight Gain?

Whether vitamins affect weight gain is not a simple yes or no question. Several factors will determine whether vitamins will have any effect on your ability to gain weight. In short, the only way to gain weight is to eat more calories than you’re burning. If you’re doing this consistently, then you will gain weight. 

However, if you’re struggling to eat in a caloric surplus, you may be deficient in certain vitamins and minerals. So, what vitamins are good for weight gain? Vitamin D deficiency, for example, is associated with a loss of appetite.  Taking a multivitamin supplement may help with this issue, which will add more calories to your diet, and lead to more consistent weight gain. As a result, if you’re looking for vitamins that cause weight gain, Vitamin D is a good place to start as it is also important for muscle health and recovery, which is crucial when bulking.

Additionally, many vitamins and minerals are necessary for energy production. If you’re deficient in several vitamins, energy production likely won’t be very efficient, which may lead to lower energy while training and less muscle growth. 

We recommend consulting with your doctor and getting blood work done to see if you’re deficient in anything. This way you can get a better idea of which nutrients you need from a multivitamin, or if you even need a multivitamin to assist with weight gain. 

Keep in mind the majority of people likely don’t need to seek out specific vitamins that help you gain weight, and should instead focus on eating more foods naturally rich in vitamins and minerals. 

In What Cases are Multivitamin Supplements Justified?

As mentioned, multivitamin supplements will only be beneficial for weight gain if you are deficient in something. But what may lead to deficiencies? Below we’ll be covering 3 cases where the use of a multivitamin supplement may be justified for weight gain. 

1. If You Have Malabsorption Conditions or Significant Food Intolerances

First, one of the most common reasons people become deficient in certain micronutrients even with seemingly adequate intake is because of malabsorption conditions and food intolerances such as celiac or lactose intolerance. These conditions may make it difficult to absorb certain nutrients, leading to a multivitamin being necessary for proper nutrient intake. 

2. If You Rely on a Narrow Range of Foods

Similar to the point above, dietary restrictions may make it difficult to get all the nutrients you need. Restrictive diets like keto and veganism both commonly lead to nutrient deficiencies. Because broadening your diet may not always be an option for medical or personal reasons, using a multivitamin supplement can be a good way to make up for these gaps in your diet. 

3. If You Are Taking Certain Medicines

There are certain medications you may be taking that you’re unaware cause vitamin deficiencies. These include antacids which affect Vitamin B and Zinc absorption, antibiotics that affect Vitamin B and Vitamin K absorption, and corticosteroids which may cause Vitamin D and Vitamin C deficiencies. Many of these medications are temporary treatments, so the associated risk of deficiency hopefully won’t last too long. 

If you’ve recently begun taking any medication, it’s a good idea to get your blood work done and ask your doctor if any potential deficiencies may be caused by this medication. 

How to Choose the Best Vitamins for Weight Gain?

If you’ve decided you would benefit from the use of a multivitamin to help you bulk, then there are 2 specific things you’ll want to look out for. Namely, third-party certifications, and the dose of the supplement. 

1. Choose Products With USP or Other Recognized Certification

First, take a look at what certifications a certain product has. These can be from USP, Informed Sport, or any other recognized third-party. These are generally a good indication of the quality, potency, and manufacturing process of a certain product. 

2. Choose Products That Cover No More Than 100% of Daily Needs

Additionally, consider the formula, especially with how it relates to your personal needs. A good rule of thumb is to choose a multivitamin that has most of the ingredients dosed right around 100% DV. For most vitamins, anything more than this will not be put to good use in your body, making it generally pointless to take this much. 

How to Gain Weight With or Without Vitamin Supplements?

While vitamin supplements may make it easier to gain weight in certain cases, regardless of whether you’re taking a multivitamin, there are a few general rules for gaining weight we recommend following.

First, be sure you’re eating in a moderate caloric surplus. An additional 250-500 calories on top of your maintenance calories should be ideal for most people to prevent unnecessary fat gain. Also, be sure you’re eating enough protein to promote muscle growth, with 0.7-1g per pound of body weight being ideal. 

Next, practice consistent weight training. When paired with adequate calories and protein, this will provide your muscles the stimulus they need to grow over time. Find a program that hits every major muscle group 1-2 times a week.

Finally, be patient! Weight gain is a marathon, not a sprint. Don’t get discouraged if you don’t gain a bunch of weight right away. You can slowly add more calories to your diet if you don’t notice any progress. If you stay consistent, you’ll be sure to gain a significant amount of weight over time. 

FAQ

What Vitamins Help You Gain Weight?

If you’re not deficient in anything, additional vitamins won’t affect your ability to gain weight. However, deficiencies in micronutrients like Vitamin D, Magnesium, Vitamin B1, and more are all associated with a loss of appetite. As a result, if you’re deficient in certain micronutrients, it may be difficult for you to maintain an appetite and get an adequate caloric intake for weight gain. 

Will Vitamin B12 Cause Weight Gain?

There are a whole host of issues associated with Vitamin B12 deficiency including fatigue, and insomnia. As a result, getting adequate Vitamin B12 may help you live a healthier, more active lifestyle, which may in turn help with habits associated with weight gain and muscle growth – such as exercise and good sleep quality. However, there’s no evidence to support that Vitamin B12 is directly associated with weight gain. 

Can Omega-3 Help Gain Weight?

Similar to B12, there are many issues associated with Omega-3 deficiencies. As a result, there may be some minor correlation between Omega-3 intake and your ability to gain weight. However, it’s unlikely that Omega-3 intake will make a major difference in body weight. 

Can Vitamin D Cause Weight Gain?

One of the main symptoms associated with Vitamin D deficiency is a loss of appetite. As a result, getting an adequate intake of Vitamin D may help you eat more, leading to weight gain over time. Of course, supplementation itself doesn’t inherently increase appetite, especially if you’re already getting enough. It will only make a difference in appetite if you’re deficient in Vitamin D. 

Conclusion

While multivitamins aren’t necessary for those who get adequate dietary intake of vitamins and minerals, they can greatly benefit those who are deficient in one or more key micronutrients. There are plenty of side effects associated with deficiencies – including loss of appetite and fatigue – that may affect your ability to gain weight. As a result, we recommend consulting with your doctor and getting your blood work done to decide if a multivitamin supplement is necessary for you to gain weight. 

If you’re interested in a high-quality multivitamin supplement to assist with weight gain, we recommend checking out Nature Made Multi for Him.

Have you ever taken a multivitamin to help with weight gain? Do you have a favorite multivitamin supplement we missed out on? Let us know your thoughts in the comments below!

Also read:

• Best Bodybuilding Multivitamin
• Best Multivitamin Gummies

References:

1. Akhgarjand C, et. al, “Does Ashwagandha supplementation have a beneficial effect on the management of anxiety and stress? A systematic review and meta-analysis of randomized controlled trials.” Phytother Res. Nov;36(11):4115-4124. (2022).
2. Lopresti AL, et. al, “An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study.” Medicine (Baltimore). Sep;98(37). (2019).
3. Stephen J Smit, et. al, “Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review” Adv Nutr. 2021 May; 12(3): 744–765
4. University Health Center, “9 vitamin D deficiency symptoms (and 10 high vitamin D foods),” Nebraska Medicine, https://health.unl.edu/9-vitamin-d-deficiency-symptoms-and-10-high-vitamin-d-foods (Accessed Jan. 8, 2024)
5. Everson A. Nunes, et. al, “Systematic review and meta-analysis of protein intake to support muscle mass and function in healthy adults,” Journal of Cachexia, Sarcopenia and Muscle, 13, 795–810, (2022)
6. Alina Petre, Natalie Butler, “Vitamin B12 Deficiency and Weight Gain — What to Know”  Healthline.com, https://www.healthline.com/nutrition/vitamin-b12-deficiency-and-weight-gain#effects-on-weight (Accessed Jan. 8, 2024)
7. Lauren Panoff, Jillian Kubala, “5 Signs and Symptoms of Omega-3 Deficiency,” https://www.healthline.com/nutrition/omega-3-deficiency#The-bottom-line (Accessed Jan. 8, 2024)