Vitamins and minerals during treatment with Ozempic or Wegovy

When appetite drops significantly, both the quantity and variety of food consumed can also decrease. Depending on which foods are reduced, it may become more difficult to achieve adequate intakes of certain nutrients. This does not necessarily mean a deficiency exists: deficiencies are diagnosed through clinical assessment and, where appropriate, blood tests.

Nutritional needs and digestive tolerance during treatment with GLP-1 medications vary between individuals. There is no single dietary guideline suitable for everyone. If you are undergoing treatment, consult the healthcare professional supervising it before making significant changes to your diet. Fitóniq does not replace medical monitoring and is not intended to prevent or treat adverse effects of the medication.

When intake is reduced, it is advisable to pay attention to nutritional density: the amount of nutrients a serving provides in relation to its energy. The label allows you to know the energy and reference values of nutrients provided by each serving.

What does the evidence say about intake during GLP-1 treatment?

A joint guideline published in 2025 by the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society (Callahan et al., American Journal of Lifestyle Medicine) notes that the reduction in energy intake associated with these treatments can lead to insufficient intakes of vitamins and minerals, especially below 1,200 kcal per day for women and 1,800 kcal per day for men.

Nutrients mentioned as examples of potential interest include iron, calcium, magnesium, zinc, and vitamins A, D, E, K, B1, B12, and C. Which nutrients are relevant in each case depends on diet, background, symptoms, and, when appropriate, clinical tests.

Recognized functions of these nutrients

The following are authorized health claims for each nutrient. They may only be used for a food that is, at a minimum, a source of the corresponding nutrient.

Vitamin D

Vitamin D contributes to the normal functioning of the immune system. Vitamin D contributes to the maintenance of normal bones. Vitamin D contributes to the normal functioning of muscles.

Vitamin B12

Vitamin B12 contributes to normal energy metabolism. Vitamin B12 helps reduce tiredness and fatigue. Its food sources include meat, fish, eggs, and dairy. If you reduce these foods by eating less, your intake may also decrease.

Iron

Iron contributes to the normal formation of red blood cells and hemoglobin. Iron helps reduce tiredness and fatigue. If foods that provide iron are reduced, your intake may also decrease.

Magnesium

Magnesium contributes to the normal functioning of muscles and the nervous system, and to normal energy metabolism.

Potassium

Potassium contributes to the normal functioning of the nervous system. Potassium contributes to the normal functioning of muscles. Potassium contributes to the maintenance of normal blood pressure.

Iodine

Iodine contributes to normal production of thyroid hormones and normal thyroid function.

Selenium and zinc

Selenium contributes to the normal functioning of the immune system and to the protection of cells from oxidative damage. Zinc contributes to the normal functioning of the immune system, to the protection of cells from oxidative damage, and to the maintenance of normal hair.

Thiamine (vitamin B1)

Thiamine contributes to normal energy metabolism and to the normal functioning of the nervous system.

Important: none of these functions is equivalent to treating, preventing, or correcting a deficiency. If symptoms appear or you suspect a deficiency, assessment and treatment are the responsibility of your healthcare professional.

What a serving of Fitóniq provides according to its label

Values per serving prepared according to current labels consulted on July 27, 2026. Composition may vary by product and method of preparation; always consult the label of the purchased product.

To know if your total day covers your needs, you must add up everything you eat, not just one serving.

A meal replacement or a food supplement?

These are different products and meet different needs. A food supplement provides nutrients in concentrated doses and does not replace a meal. Meal replacements for weight control that use authorized claims must meet specific requirements for energy, fat, protein, vitamins, and minerals per serving.

Which one fits better depends on your situation and, if you are undergoing treatment, on the instructions of the supervising professional. If you struggle to eat in an organized way when you have no appetite, a pre-portioned serving that is ready in a few minutes resolves a real friction: you know exactly what you are taking because it is on the label.

Fitóniq offers pre-portioned servings and preparations ready in a few minutes, with several flavors including savory dishes, shakes, and sweets. Energy, protein, fiber, and micronutrients appear on the label of each product so you can know its composition before incorporating it into your diet. You can see them all in the Fitóniq store.

Frequently asked questions

Which vitamins and minerals should be monitored during treatment with Ozempic?

There is no universal list for everyone. A significant reduction in intake can increase the risk of insufficient intake. A joint clinical guideline published in 2025 mentions, among others, iron, calcium, magnesium, zinc, and vitamins A, C, D, E, K, B1, and B12. The relevant nutrients in each case depend on diet, background, symptoms, and, where appropriate, clinical tests. The need for supplementation should be evaluated by a healthcare professional.

Why am I losing hair while taking Ozempic?

Hair loss during weight loss can have several causes, including a marked reduction in intake. Do not self-evaluate: discuss it with the professional supervising your treatment, who will be able to rule out other causes and decide if tests are needed.

Can I take a meal replacement during treatment?

It is an option that many people find practical when appetite is low, because the serving is pre-portioned and its composition is listed on the label. Review that composition and how it fits into your overall diet with the professional managing your treatment.

Is it the same as taking a food supplement?

No. A supplement provides nutrients in concentrated doses and does not replace a meal. A meal replacement for weight control must meet specific requirements regarding composition per serving.

Does one serving cover my needs for the day?

Not on its own. The percentages in the table represent the contribution of one serving; the daily total depends on everything you eat.

In summary

• Eating significantly less can make it difficult to achieve adequate intakes of some nutrients, but that is not equivalent to having a deficiency: that is diagnosed clinically.
• A significant reduction in intake can increase the risk of insufficient intake, but the relevant nutrients vary according to diet and individual situation.
• When appetite is low, choosing options with the composition on the label allows you to track your day with data.
• No food prevents or corrects a deficiency: if there is a suspicion, it is a matter for your healthcare professional.

Do you want to organize your meals without doing calculations when you have no appetite? See how Fitóniq works and check the composition of each product on its label. If you are undergoing GLP-1 treatment, discuss it beforehand with the supervising professional.