Fortified Milk Oatmeal | IDDSI Level 3 Recipe

IDDSI Level 3 (Liquidised) | 15 minutes | Easy

Replacing water with whole or calcium-enriched milk when cooking oats significantly boosts the nutritional profile: each serving provides approximately 250mg calcium (from milk) and 10g protein — more than double the protein of water-based oatmeal (approx 4g). Particularly suited as a breakfast for elderly patients at risk of osteoporosis or with insufficient protein intake, or as a fortified afternoon supplement.

Ingredients (serves 1)

Main ingredients:

• Quick oats 50g
• Whole milk or calcium-enriched milk 300ml (do not substitute skimmed milk — fat aids fat-soluble vitamin absorption)

Nutritional boosters (optional — choose one):

• Milk powder 1 tbsp (additional calcium and protein)
• Unflavoured whey protein powder 15g (raises protein to ~20g per serving)

Seasoning:

• Honey ½ tsp (optional)
• Vanilla extract 2–3 drops (optional, for aroma)

Method

1. Heat milk (with milk powder or protein powder, if using) in a saucepan over medium heat to near-boiling (small bubbles appear at edges, not a full rolling boil).
2. Add oats; stir continuously to prevent sticking. Cook 5–7 minutes until oats are completely soft and dissolved.
3. Remove from heat; blend thoroughly with a stick blender until completely smooth (at least 60 seconds).
4. If too thick, add a little warm milk; confirm Level 3 flow by tilting a spoon.
5. Stir in honey if desired. Serve immediately in a bowl.

Texture Testing

Flow test: Passes Level 3 — oatmeal flows off a tilted spoon and spreads flat in the bowl, losing shape within 5 seconds.

Particle check: After thorough blending, no oat particles or fibres remain. Texture resembles a smooth cream soup.

Spoon test: Flows slightly slower than plain milk, similar to thick soup; does not hold shape on a tilted spoon.

Safety Notes

⚠️ Milk heating — Avoid a full rolling boil, which denatures milk protein and causes skin formation, altering texture. Heat to 65–70°C (near-boiling) before adding oats.

⚠️ Thickening on standing — Oat beta-glucan continues absorbing liquid as it cools, causing noticeable thickening. Recheck texture before serving and thin with warm milk if necessary.

⚠️ Lactose intolerance — Use lactose-free milk (e.g. Lactaid) or unsweetened soy milk to maintain comparable calcium and protein levels.

⚠️ Protein powder selection — If using whey protein powder, choose unflavoured with no artificial sweeteners or colours. Patients with renal impairment should consult a healthcare professional before adding protein powder.

Purchasing in Hong Kong

• Calcium-enriched milk: ParknShop or Wellcome; choose “high calcium” (高鈣) varieties with 30–50% more calcium than standard milk.
• Quick oats: Choose plain oats with no added sugar or flavouring. Quaker Traditional or Instant Oats both work well.

Nutrition Notes

Per serving (approx 350ml, without protein powder): ~290 kcal, protein 10g, calcium 250mg, fibre 3g, vitamin D (if fortified milk used) ~2μg. With whey protein powder, protein rises to approximately 25g per serving. This recipe provides approximately 25% of the daily calcium target of 1000–1200mg recommended for adults over 60 years.