Hepatitis Foundation International

Home » General Health » Best Vitamins For Weight Gain – Boost Your Metabolism!

Best Vitamins For Weight Gain – Boost Your Metabolism!


Gaining healthy weight requires a multifaceted approach, including proper exercise, nutrition, and lifestyle habits. However, making sure your body gets adequate vitamins is a key factor that often gets overlooked.

Vitamins help regulate fat and carbohydrate metabolism, control appetite, improve digestion and nutrient absorption from foods, and allow the body to efficiently use proteins, fats, and energy sources. 

Deficiencies in certain vitamins can lead to weight loss while ensuring optimal levels can help boost weight when needed.

This article will examine the top 10 vitamins that can aid weight gain goals when included as part of a balanced nutrition plan.

Top 10 Vitamins For Weight Gain

Top 10 Vitamins For Weight Gain

Vitamin D

Vitamin D regulates insulin secretion and the metabolism of protein, fat, and carbohydrates. Low levels of vitamin D are associated with an increased risk of weight gain and obesity. Getting sufficient vitamin D optimizes metabolism and may help with weight gain.

  • Recommended intake: 600 IU per day
  • Food sources: Salmon, tuna, eggs, mushrooms 

Vitamin B12 

Vitamin B12 plays an important role in protein, fat, and carbohydrate metabolism. It may boost weight gain attempts by improving metabolism and energy production from the foods you eat. 

  • Recommended intake: 2.4 mcg per day
  • Food sources: Meat, fish, eggs, dairy

Vitamin E

This fat-soluble antioxidant vitamin helps the body build and maintain cells and muscle tissue. Vitamin E also increases the absorption and storage of vitamins A and C to further aid tissue and muscle growth.

  • Recommended intake: 15 mg per day 
  • Food sources: Nuts, seeds, spinach, broccoli

Vitamin C

Vitamin C helps you absorb more iron, which helps increase RBC production and growth as you gain weight. Vitamin C also boosts collagen production needed for muscle growth and development.  

  • Recommended intake: 75 mg per day
  • Food sources: Citrus fruits, berries, tomatoes, peppers

Vitamin A

Vitamin A ensures proper protein synthesis needed to develop new muscle tissues as you gain weight. It also regulates growth factors in the body for efficient nutrient processing.

  • Recommended intake: 900 mcg per day
  • Food sources: Carrots, sweet potatoes, spinach, beef liver

Vitamin B3 

Also called niacin, vitamin B3 optimizes fat breakdown and energy usage in the body. This provides an energy supply for the increase in tissues and muscles as you gain weight.

  • Recommended intake: 16 mg per day
  • Food sources: Chicken, tuna, salmon, mushrooms 

Vitamin B2

Riboflavin or vitamin B2 acts as a growth-boosting vitamin. It facilitates protein metabolism, cell growth, produces energy from fats, and helps convert vitamin B6 and folate into active forms. 

  • Recommended intake: 1.3 mg per day
  • Food sources: Eggs, organ meats, mushrooms, spinach

Vitamin B7

Also called biotin, vitamin B7 plays a role in the growth and maintenance of tissues, cells, and muscles. It metabolizes fats, proteins, and carbohydrates to provide the body with energy.

  • Recommended intake: 30 mcg per day 
  • Food sources: Nuts, sweet potatoes, eggs, salmon

Vitamin B1

Vitamin B1 aids weight gain by enabling the body to optimize energy production from the macronutrients in food. It’s vital for muscle growth.

  • Recommended intake: 1.2 mg per day
  • Food sources: Pork, eggs, seeds, legumes

Vitamin B9

Folate or vitamin B9 works together with vitamin B12 for the formation of new proteins, muscles, and red blood cells as you gain weight. 

  • Recommended intake: 400 mcg per day
  • Food sources: Lentils, spinach, asparagus, liver


Achieving a healthy weight gain requires strategic nutrition planning, exercise, and lifestyle habits.

Ensuring your diet includes optimal amounts of key vitamins that enhance tissue growth, protein synthesis, energy metabolism, and nutrient absorption can support your efforts. Work these critical vitamins into a balanced diet to set yourself up for success.


1. Can vitamins alone help me gain weight?

While vitamins play a vital role in supporting weight gain, a comprehensive approach involving a balanced diet and exercise is necessary for effective and sustainable weight gain.

2. Are there any side effects of taking vitamin supplements for weight gain?

When taken as directed, vitamins are generally safe. However, it’s essential to consult with a healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions.

3. How long does it take to see results from a weight gain strategy?

The timeline for weight gain results varies from person to person. Consistency in following your diet and exercise plan will contribute to seeing positive changes over time.

4. Can I gain weight without increasing body fat?

Yes, with a well-planned diet and appropriate exercise, it is possible to gain weight by focusing on muscle development rather than accumulating excess body fat.

5. Is it better to consume vitamins through food or supplements?

While whole foods are the best source of vitamins, supplements can be beneficial for individuals with specific nutrient deficiencies. Whenever possible, prioritize obtaining vitamins through a balanced diet.

Dr. Harold Gojiberry is not just your ordinary General Practitioner; he is a compassionate healthcare provider with a deep commitment to patient well-being and a passion for literature. With extensive medical knowledge and experience, Dr. Gojiberry has made a significant impact in the field of healthcare, particularly in the area of liver diseases and viral hepatitis.

Leave a Comment