# Targeted supplementation in Pretoria

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Author and medical reviewer: **Dr Luhard Jansen van Vuuren, MBChB (Pret)**  
Last reviewed: **12 October 2026**

Targeted supplementation starts with a defined clinical purpose. Dr Luhard assesses diet, symptoms, medicines, existing supplements and relevant investigations before deciding whether a supplement has a useful role.

## There is no universal supplement stack

Supplements may be appropriate for a demonstrated deficiency, a predictable nutritional gap, a specific clinical need or a treatment-related risk. They should not replace a varied diet or prescribed treatment. “Natural” does not automatically mean safe.

## What an assessment may include

The assessment may consider dietary intake, appetite and weight change, gastrointestinal symptoms, diagnoses, medicines, pregnancy or fertility considerations, kidney and liver health, and blood tests when the result would change care. Testing is individualised; more testing is not automatically better.

## During medically assisted weight loss

Reduced appetite or gastrointestinal adverse effects can affect protein intake, hydration and micronutrient coverage. The first response is not automatically a high-dose supplement stack. The plan should identify the actual gap, protect nutrition and lean tissue, and review tolerance and progress. See [medical weight loss in Pretoria](https://drluhard.com/medical-weight-loss-pretoria.html).

## Interactions, dose and quality

Supplements can interact with prescription medicines, affect laboratory results and cause adverse effects. A useful plan identifies the product, dose, purpose, duration, quality considerations and review point. It should also state when to stop or seek medical advice.

## How supplementation fits into coordinated care

Supplementation may sit alongside nutrition, activity, [hormone-health assessment](https://drluhard.com/hormone-health-pretoria.html), medical weight management or other care. It is one possible component of an assessment-first plan, not a compulsory wellness package.

## Frequently asked questions

### Does everyone need supplements?

No. Need depends on diet, clinical context, risk factors and relevant investigations.

### Are blood tests always required?

No. Testing is useful when a result could change diagnosis, treatment or monitoring.

### Can supplements interact with medicines?

Yes. Supplements can alter medicine effects, increase adverse-event risk or affect laboratory results. Bring a complete product list to the consultation.

## Sources and further reading

- [NIH Office of Dietary Supplements: evidence-based fact sheets](https://ods.od.nih.gov/factsheets/list-all/)
- [World Health Organization: healthy diet](https://www.who.int/news-room/fact-sheets/detail/healthy-diet)

Medical disclaimer: General information only. It does not replace a consultation, diagnosis or personalised treatment recommendation.