Typical costs for dietary fiber in everyday life vary by source. Whole foods like oats, legumes, vegetables, and fruits are generally inexpensive, often under €1 per serving. For example, a portion of oatmeal or lentils costs around €0.30–0.50. Processed high-fiber products (bars, cereals, fortified foods) are pricier, ranging €2–5 per serving. Supplements such as psyllium husk or inulin powder cost €10–30 per kg, translating to €0.20–1 per day depending on dose. These estimates are based on general market prices and nutrition practice, not on controlled studies. No genetic markers from MyBody-X tests predict fiber needs or costs. Evidence level: practice. Note: A whole-food high-fiber diet is usually more affordable and healthier than relying on supplements.
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