man lifting a heavy weight

What Are The Best Vitamins for Weight Gain?

Whether you’re trying to bulk up for weight-lifting or sports purposes, or simply need to put on a few pounds to stay healthy, gaining weight can be just as difficult as weight loss. While wanting to gain weight isn’t as common as trying to lose it, both goals come with unique problems.

In addition to practical reasons, you may want to gain weight to avoid dangerous health complications.

Nutritional deficiencies, depression, and certain medical conditions can lead to unwanted weight loss and result in serious health complications if left untreated. It’s essential to visit your doctor if you experience unexplained weight loss. They can recommend a treatment plan and suggest vitamins or supplements that can help you achieve a healthy weight.

8 Best vitamins for weight gain

Eating more food and upping your calorie intake will generally help with weight gain. However, you may find gaining weight more effective and easy by supplementing certain vitamins and minerals. Although vitamins don’t account for calories and won’t increase your weight on their own, they can help with bodily functions and increase your appetite.

Vitamin C

Vitamin C is often considered a super vitamin because of its many health benefits. In addition to boosting your immune system and keeping you healthy, Vitamin C aids iron absorption and aids the management of cortisol levels, which can help reduce stress that may be contributing to weight loss.

lots of fruit rich with vitamin C

Vitamin B12

B vitamins, specifically Vitamin B12, are extremely beneficial for helping you gain weight. B12 helps convert food into energy, which is important for a healthy appetite. One study found that B12 supplements increased the appetite of a patient experiencing weight loss and anemia, enabling the patient to return to a healthy weight. 1

A table full of natural food sources of vitamin b12 and a blackboard in between it that writes "VITAMIN B12".

Vitamin D

The main way that Vitamin D helps with weight gain is by improving the mass and density of your bones. Strong, healthy bones will weigh more than weak bones, and help lead to improved health and wellness.

vitamin d package and pills


While folate, aka folic acid, in and of itself won’t lead to weight gain, having a folate deficiency can lead to unwanted weight loss. Folate increases your energy levels and boosts your appetite, which means that when you don’t have enough in your system, you may feel tired and not want to eat.

red blood cells, erythrocytes, traveling through the blood vessels.


When combined with Vitamin D, calcium is a mineral that has significant weight-gaining benefits. Calcium increases bone density and health, leading to increased energy, strength, and heavier bones.

glass of milk on a black background


Iron is a mineral that your body cannot create on its own but requires for several important reasons. Iron helps your body utilize and transfer oxygen throughout the body. Additionally, low levels of iron can lead to iron-deficiency or vitamin-deficiency anemia, both of which can result in weight loss. However, because too much iron in your system can be toxic, it’s important to only take iron supplements under medical supervision.

spinach on a toast

Vitamin A

Vitamin A is best known for helping boost your immune system, aiding your vision, and improving your skin health. One of the lesser-known benefits of Vitamin A is that it can help with weight gain. Vitamin A can help promote the growth, protection, and performance of cells within your organs, which is important for weight gain.

vial with supplements

Vitamin B1

People with a Vitamin B1 deficiency may experience a loss of appetite, which in turn may cause weight loss. Vitamin B1 can help increase your appetite and help you gain weight.

Omega 3 yellow capsules.

What is the most effective way to ingest vitamins for weight gain?

Oral supplements and IV therapy are two of the most popular ways to increase vitamin intake and support weight gain. Oral supplements in the form of pills and powder tend to be more affordable and easily accessible than IV therapy. However, pills and powders also take longer to be absorbed into your system.

Vitamin IV therapy, on the other hand, sends vitamins and minerals directly into your bloodstream, where they are quickly distributed throughout your body. IV therapy allows you to maximize the weight-gaining effects of key vitamins, and it takes almost immediate effect compared to oral supplements. Vitamin IV therapy can be a highly effective option if you need to gain weight quickly.

Final thoughts

Vitamins are extremely beneficial for gaining weight when combined with a healthy diet and lifestyle. However, you should be selective when choosing your vitamins and seek a medical consultation to learn which ones will benefit you the most. While oral supplements are a readily-available option, vitamin IV therapy is much more effective for safe and rapid weight gain.

In-Home IV Treatments With Drip Hydration

Our mobile IV infusions are a convenient way to restore key vitamins and replenish your body quickly. Our vitamin IV treatments take less than an hour and are administered by one of our registered nurses.

Click the button below to schedule your appointment today!

Vitamin IV Therapy - Frequently Asked Questions

What is IV therapy, and how does it work?

IV therapy is a process in which fluids, vitamins, minerals, and/or medications are administered into the bloodstream via a catheter. The catheter is inserted into a blood vein, the IV infusion bag is hung over the patient’s head, and gravity slowly drips the contents of the bag into the patient’s bloodstream.

Who can benefit from IV therapy?

Individuals in many walks of life can benefit from IV Therapy, including:

  • Athletes wanting to recover from an intense workout quickly
  • Busy parents who need a natural pick-me-up energy boost
  • Individuals who struggle with low vitamin levels or digestive absorption issues
  • Travelers who want to overcome jet lag quickly
  • Individuals who want fast relief from hangover or stomach flu symptoms
  • Individuals who want a quick infusion of beauty-boosting vitamins and minerals

What types of IV therapy treatments are available?

Drip Hydration offers a wide range of IV treatment options. Our IV infusions contain vitamins, fluids, minerals, electrolytes to help address many health and wellness targets.

We offer the following IV therapy treatments:

  • Dehydration
  • Energy Boost
  • Hangover
  • Immune Boost
  • Stomach Flu
  • Myer’s Cocktail
  • Recovery
  • Beauty
  • Super Immune
  • All-Inclusive
  • NAD+
  • NAD+ Boost
  • Iron

What are the benefits of IV therapy?

IV therapy offers many potential wellness benefits, including:

  • Rehydration
  • Boost low levels of vitamins, minerals, and electrolytes
  • Help boost immune health
  • Help provide fast relief from symptoms of hangovers, stomach flu, headaches, jet lag, and more

In addition to these benefits, specialty treatments such as NAD+ may provide additional anti-aging, metabolic, and neurological benefits.


[1] Keskin EY. - Severe vitamin B₁₂ deficiency in a 15-year-old boy: presentation with haemolysis and pancytopenia.;