Do You Need a Multivitamin on Mounjaro or Ozempic? A Nutrition Guide for GLP-1 Users

Why You Might Need More Vitamins on GLP-1 Medications (And What to Look For)

GLP-1 receptor agonists like Ozempic® (semaglutide), Mounjaro® (tirzepatide) and Wegovy® have transformed the way we manage weight and type 2 diabetes. These medications work by mimicking a natural hormone (GLP-1: glucagon-like peptide-1) that slows gastric emptying, reduces appetite, and enhances insulin sensitivity.

But while they help with blood sugar control and weight loss, there’s a side to them that’s often overlooked: they can change how your body takes in and uses nutrients — and in some cases, increase your need for vitamin and mineral support.

Let’s break down what’s happening.

🔬 How GLP-1 Medications Affect Nutrition & Digestion

1. Reduced Appetite = Reduced Nutrient Intake

One of the most effective actions of GLP-1 meds is appetite suppression. People often report eating 50% less than before. While this supports weight loss, it also means you’re likely consuming fewer:

• Micronutrients (vitamins and minerals)

• Fibre

• Healthy fats (which are key to fat-soluble vitamin absorption)

• Protein (which supports B vitamin function and metabolism)

Over time, this can lead to subtle deficiencies — especially if meals become more snack-based or irregular.

2. Slower Gastric Emptying & Digestive Changes

GLP-1 drugs delay how quickly food leaves the stomach. While this helps keep you feeling full, it can also:

• Impair nutrient absorption, especially of fat-soluble vitamins (A, D, E, K)

• Cause nausea or discomfort, making it harder to eat nutrient-dense meals

• Change gut microbiota, which may indirectly impact B vitamin synthesis and immune health

In some cases, users also experience gastrointestinal issues, which further compromise how well nutrients are absorbed.

3. Fat-Soluble Vitamins: A Special Concern on GLP-1s

Fat-soluble vitamins — A (as beta-carotene), D, E, and K — require dietary fat and proper digestion for absorption. But if you're eating very little fat (a common trend on weight loss injections), you’re more at risk of deficiency.

Here’s what each of these does:

• Vitamin D3: Supports bone density, immunity, and mental wellbeing

• Vitamin K2: Helps shuttle calcium to bones and away from arteries

• Vitamin E: A powerful antioxidant that protects cells

• Beta-Carotene (pro-vitamin A): Supports skin, vision, and immune response

Without enough fat in the diet — or with delayed gastric emptying — absorption of these nutrients drops significantly. That’s why they need to be delivered in the right combinations and forms, ideally with co-factors that aid uptake.

🔍 What to Look For in a Multivitamin if You’re on Ozempic or Mounjaro

If you’re taking a GLP-1 medication, a standard one-a-day multivitamin may not be enough — and in some cases, it may do more harm than good. You want a supplement that is:

• ✅ Bioavailable (uses active, easily absorbed nutrient forms)

• ✅ Free from unnecessary fillers and binders (which may upset digestion)

• ✅ Designed with nutrient compatibility in mind

• ✅ Includes full spectrum of fat-soluble and B-complex vitamins

• ✅ Optimised for when your body needs them most

🌿 How TRINITY Supports GLP-1 Users: Clean, Absorbable, and Time-Optimised

Enter TRINITY — a premium multivitamin system by Arbor Vitamins, created to support your body’s daily rhythms, nutrient needs, and digestive wellbeing. It’s a 3-phase formula, designed to be taken in the morning, day, and night, each capsule carefully formulated with compatible nutrients that are timed to work with your body’s natural processes.

🧠 Morning Formula

• B-complex (B1, B2, B5, folate, biotin) for energy metabolism

• Iron + Vitamin C for healthy red blood cell formation

• Turmeric & magnesium malate for inflammation and cognitive clarity

💡 Why it matters: GLP-1 users often feel low energy in the mornings. This gives a metabolic and mental lift, without caffeine or synthetic additives.

☀️ Day Formula

• Vitamin D3 + K2 for bone health and immune support

• Zeaxanthin & Lutein for antioxidant defence and eye health

• B6 + B12 (active forms) for mood and neurological balance

💡 Why it matters: These are key nutrients commonly missing in reduced-calorie diets — and often under-absorbed on GLP-1s.

🌙 Night Formula

• Magnesium bisglycinate for sleep and muscle relaxation

• Zinc, selenium, manganese for recovery and hormonal balance

• Natural beta-carotene & vitamin E for antioxidant protection overnight

💡 Why it matters: Many users experience disrupted sleep or fatigue. This blend helps your body rest and restore.

🧪 What Makes TRINITY Different?

• ✅ No fillers, bulking agents, or synthetic additives

• ✅ Vegan-friendly capsules — gentle on digestion

• ✅ Optimised nutrient pairing (no competing ingredients in one capsule)

• ✅ Fat-soluble vitamins included in all the right forms

• ✅ Designed for absorption — not just inclusion on a label

Final Word: Give Your Body What It’s Missing

GLP-1 medications change how your body eats — and absorbs. The right multivitamin doesn’t just fill gaps; it prevents long-term deficiencies, supports your energy, and helps you feel more like yourself while you're on your weight loss or blood sugar journey.

TRINITY isn’t just a supplement — it’s a support system for people using GLP-1 medications who want to protect their health while changing their lives.

✅ Key Takeaways:

• GLP-1 meds can reduce intake and absorption of key vitamins, especially fat-soluble ones

• B vitamins, magnesium, vitamin D, and antioxidants are essential while appetite is suppressed

• TRINITY delivers a clean, time-optimised, and bioavailable solution — perfect for Mounjaro and Ozempic users