IV Nutrient Therapy

By Dr. Samantha Larkin, ND – Associate Doctor and Manager of the Spark Health IV Program


Want to take your weight loss & detox journey to the next level? Regular nutrient IV therapy can improve your results if combined with a healthy diet and exercise plan! We have multiple options for weight loss vitamin IVs here at Spark Health. Our weight loss Fast Bag IV is a fantastic choice for new patients, or those who would like an IV experience under 20 minutes. The weight loss Fast Bag IV contains all of the B vitamins (including B12), vitamin C, calcium, magnesium, and the featured weight loss nutrients, L-carnitine and MIC. For those who are interested in full size vitamin IV bags, the Body Sculpt Plus bag is a fantastic formulation that packs an even bigger punch!




L-carnitine- Naturally found in red meat, fish, poultry, and milk, L-carnitine has been shown to increase the function of mitochondria, the energy-producing machines that are found in our cells. L-carnitine revs our metabolism, and is also known to support our nerves, brain, and heart. Studies have shown that people who have received carnitine lost more weight and showed a decrease in body mass index (BMI) compared to those who did not receive carnitine. (8)


MIC (Methionine Inositol Choline)- MIC is known as the ‘weight loss’ nutrient combination, helping with fat burning and speeding up metabolism. Most people have great results when combining MIC with a nutrition and exercise plan geared toward weight loss. Methionine, an essential amino acid, helps the liver break down fat. Methionine also acts as an antioxidant and helps the body produce its own glutathione. Inositol improves insulin sensitivity in the body and is critical for fat metabolism and fat-burning liver function. Choline regulates cholesterol and fat transport around the body, preventing it from depositing in one place. Those who do not eat milk or eggs may be at risk of choline deficiency.


Methylcobalamin (B12)– Vitamin B12 helps with the conversion of your food into energy. Vitamin B12 may be lower in people with gastrointestinal disorders or celiac disease, and those following certain diets or taking certain medications. (3, 4, 5, 6) Studies have also shown that B12 deficiency is more common in those who are overweight or obese. (1,2)  At Spark Health, we use Methylcobalamin, the form of vitamin B12 that can be utilized immediately by the body. This is crucial for those who have MTHFR genetic mutations that make it difficult to convert certain vitamins into their active forms. Supplementation of Methylcobalamin also supports the immune system, so you can stay well and continue to exercise and eat healthy. (7)


Glutathioneis a crucial IV component for anyone who is on a weight loss or detox protocol. As we burn fat, we are also releasing many toxins into the bloodstream. Glutathione is a fantastic antioxidant, and can be thought of like a pacman that goes into the bloodstream to chomp up toxins. A glutathione push may be added to any of our Fast Bag IVs, and is included with all of our full size IV bags!




If the idea of an IV bag is overwhelming, come to Spark Health today to try one of our B12 shots! We go above and beyond when formulating our shots, adding much more than just B12. Try our “Body Sculpt” Shot for weight loss. This shot includes B12, L-carnitine and MIC.


Also consider making an appointment with one of our naturopathic doctors to discuss your weight management / detox goals and other health concerns. There are many variables that contribute to weight gain, including hormonal changes, certain infections, and other imbalances. Our naturopathic doctors are experts in optimizing results and customizing a weight loss plan that is personalized for your body’s unique physiology.


If you are interested in learning more about our Weight Management or Detox offerings, or would like more information about naturopathic medicine or integrative medicine, call 858-228-4188 or send us an email at Spark@MySparkHealth.com. We look forward to working with you to achieve your highest expression of health!


Spark Health is conveniently located so we can serve patients in San Diego, and all of North County such as Del Mar, Solana Beach, Rancho Santa Fe, Encinitas, Carlsbad, Escondido, San Marcos, and Poway. We look forward to helping you achieve your goals!


Thank you,

` The Spark Team




  1. Kaya et al. Obesity and insulin resistance associated with lower plasma vitamin B12 in PCOS. Reprod Biomed Online 2009; 19:721-6.
  1. Baltac et al. Association of vitamin B12 with obesity, overweight, insulin resistance and metabolic syndrome, and body fat composition; primary care-based study. Med Glas (Zenica) 2013; 10(2):203-210
  1. Aarts et al. The Gastric Sleeve: Losing Weight as Fast as Micronutrients? Obes Surg (2011) 21:207–211
  1. Berenson, et al. Effect of hormonal contraceptives on vitamin B12 level and the association of the latter with bone mineral density. Contraception. 2012 November ; 86(5): 481–487
  1. Zhao-Wei Ting, et al. Risk Factors of Vitamin B12 Deficiency in Patients Receiving MetforminArch Intern Med. 2006;166:1975-1979
  1. Herrmann et al. Causes and early diagnosis of vitamin B12 deficiency. Dtsch Arztebl Int 2008; 105:680-5.
  1. Tamura et al. Immunomodulation by vitamin B12: augmentation of CD8þT lymphocytes and natural killer (NK) cell activity in vitamin B12-deficient patients by methyl-B12 treatment. (1999) Clin Exp Immu- nol116,28 – 32.

8.Pooyandjoo et al. The effect of (L-)carnitine on weight loss in adults: a systematic review and meta-analysis of randomized controlled trials. Obes Rev. 2016 Oct;17(10:970-6).


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