Sip feeds & fortifiers

Paediatric oral nutritional supplements (ONS), smoothie and pudding-style feeds, and modular calorie boosters used in UK practice when intake is too low — compared by form, flavour and mouthfeel.

Not medical advice — check labels; discuss with GP or dietitian

Always check the manufacturer's current page and the pack label for strengths, flavours, age banding and directions. We cannot guarantee accuracy — formulations and flavours change without notice.
Check food allergens including excipients (oils, gelatine, sweeteners, flavour carriers, emulsifiers, thickeners) — not only the headline vitamins or nutrients. Allergy status can differ between flavours of the same brand.
This page helps families see options to talk through with a GP, paediatrician or dietitian. It does not recommend doses, brands to buy, or products to start without professional advice.
Most products here are Foods for Special Medical Purposes (FSMP). They are for use under medical supervision — usually via GP, paediatrician or dietitian, often on ACBS prescription. Do not buy and start them as everyday “meal replacements” without advice.
If a sip feed is too sweet, milky or oily, many children with ARFID will not drink it. That is never because they are being difficult. Texture belongs in the conversation with the dietitian.
Modular fortifiers (Calogen, Pro-Cal, Duocal) are not complete feeds. Wrong doses can unbalance the diet. Age limits differ from paediatric complete ONS.
No affiliate links. Prefer manufacturer, NHS or pharmacy information over marketplace listings.

Information checked September 2026 — always read the current label and datasheet; FSMP products are prescribed/advised under medical supervision. Formulations change.

How this differs from vitamins

Vitamins fill micronutrient gaps. These products are mainly about energy and protein (and sometimes fibre) when a child cannot eat enough food. See Vitamins & textures for liquids, sprays, gummies and powders aimed at vitamins and minerals.

How to use this list

Filter by form if drinks fail but spoon desserts might work — or the reverse.
Note flavours already refused. Bring that list to dietetics; starter packs exist for some brands so clinics can trial small amounts.
Adult sip feeds (e.g. many Ensure/Fortisip lines) are a different conversation — paediatric products are listed first here for a reason.

Background on restricted eating: About ARFID. Helplines: UK resources.

Filter by form

Showing 11 of 11 products

Milkshake-style sip

Nutricia Fortini

Fortini Multi Fibre

Ready-to-drink milkshake-style sip feed (200 ml)

Milkshake sip

Flavour variants: Vanilla, banana, chocolate, strawberry, unflavoured (per Nutricia UK)
Texture / mouthfeel (ARFID-relevant): Sweet milkshake mouthfeel; best served chilled. Can be gently heated (not boiled) or frozen. Fibre-containing — thicker/more filling than fibre-free feeds for some children. Shake well.
Energy / protein / what it is: About 1.5 kcal/ml (~306 kcal and 6.6 g protein per 200 ml bottle on published UK datasheet); carbohydrate, fat, protein, Multi Fibre, vitamins and minerals
Complete nutrition?: FSMP nutritionally complete for children aged 1–6 years or 8–20 kg when used as directed; can also supplement the diet
Age / weight banding (label): From 1 year of age (>8 kg). Not for infants under 1 year.
Allergens / excipients to check: Cow’s milk protein; soy (e.g. soy polysaccharides / soy lecithin on vanilla flavour ingredient list). Check each flavour pack.
Practical notes: Food for Special Medical Purposes — medical supervision. High fibre intakes need caution (manufacturer notes caution above 4 bottles/day). Prescribing/ACBS pathways vary by area.

Nutricia — Fortini Multi Fibre

Nutricia Fortini

Fortini Compact Multi Fibre

Compact ready-to-drink ONS (125 ml)

Milkshake sip

Flavour variants: Strawberry, neutral, chocolate-caramel (per Nutricia UK)
Texture / mouthfeel (ARFID-relevant): Smaller bottle, more energy-dense (~2.4 kcal/ml) — less volume to finish. Still a sweet sip-feed texture. Useful when volume aversion is the main barrier; flavour/aftertaste still decide acceptance.
Energy / protein / what it is: About 2.4 kcal/ml (~300 kcal and ~7.2 g protein per 125 ml on Nutricia range materials); fibre-containing complete paediatric ONS
Complete nutrition?: Nutritionally complete for children from 1 year (>8 kg) per manufacturer range information
Age / weight banding (label): From 1 year onwards (not under 1 year; not for galactosaemia)
Allergens / excipients to check: Expect milk and typically soy-related ingredients in Fortini liquids — verify current flavour label.
Practical notes: FSMP under medical supervision. Compact format is often trialled when 200 ml bottles are refused for volume reasons.

Nutricia — Fortini Compact Multi Fibre

Abbott

PaediaSure

Ready-to-drink milkshake-style ONS (200 ml)

Milkshake sip

Flavour variants: Banana, chocolate, strawberry, vanilla
Texture / mouthfeel (ARFID-relevant): Milkshake-style; best chilled. Can be frozen into cubes/lollipops per Abbott. Chocolate flavour has a tighter age/weight band than other flavours on UK materials.
Energy / protein / what it is: About 1.0 kcal/ml (~201 kcal and 5.6 g protein per 200 ml); protein, carbohydrate, fat, vitamins and minerals
Complete nutrition?: FSMP for dietary management of disease-related malnutrition in the stated weight/age range (under medical supervision)
Age / weight banding (label): Children weighing 8–30 kg or aged about 1–10 years; chocolate flavour stated as 12–30 kg or 3–10 years on Abbott UK materials
Allergens / excipients to check: Check pack — Abbott lists clinically lactose-free / gluten-free / vegetarian suitability with caveats (vitamin D from lanolin). Flavour-specific allergens still matter.
Practical notes: FSMP. Starter/sample packs may be available via clinical teams — not OTC shopping advice.

Abbott — PaediaSure (UK)

Abbott

PaediaSure Plus (ONS bottle)

Higher-energy milkshake-style ONS (200 ml)

Milkshake sip

Flavour variants: Banana, strawberry, unflavoured, vanilla
Texture / mouthfeel (ARFID-relevant): Sweeter/richer milkshake than standard PaediaSure for many children (1.5 kcal/ml). Unflavoured may suit savoury recipes per Abbott. Volume still 200 ml unless Compact is used instead.
Energy / protein / what it is: About 1.5 kcal/ml (~302 kcal and 8.4 g protein per 200 ml ONS); vitamins and minerals
Complete nutrition?: FSMP under medical supervision for children 8–30 kg at risk of disease-related malnutrition
Age / weight banding (label): Children weighing 8–30 kg (see current datasheet)
Allergens / excipients to check: Confirm flavour label; clinically lactose-free / gluten-free claims on Abbott materials with vegetarian caveat for vitamin D source.
Practical notes: Also available as tube-feed formats — this page focuses on oral sip use.

Abbott — PaediaSure Plus (UK)

Abbott

PaediaSure Compact

Compact high-energy milkshake-style ONS

Milkshake sip

Flavour variants: Check current Abbott UK list / starter pack (flavour set marketed for Compact)
Texture / mouthfeel (ARFID-relevant): Smaller bottle, ~2.4 kcal/ml density — aimed at children who cannot manage large drink volumes. Still milkshake sensory profile.
Energy / protein / what it is: About 2.4 kcal/ml ready-to-drink paediatric ONS with vitamins and minerals (confirm pack)
Complete nutrition?: FSMP for children weighing 8–30 kg with/at risk of disease-related malnutrition (medical supervision)
Age / weight banding (label): Children weighing 8–30 kg (confirm current labelling)
Allergens / excipients to check: Read the specific Compact flavour label and datasheet before any trial.
Practical notes: Abbott promotes Compact starter packs so families can trial flavours under clinical guidance. Exact flavour SKUs change — verify before prescribing talk.

Abbott — children’s ONS overview (includes Compact)

Smoothie / juice-style

Abbott

PaediaSure Plus Juce

Juice-style ready-to-drink ONS

Smoothie / juice

Flavour variants: Juice-style flavours — confirm current UK pack list on Abbott materials
Texture / mouthfeel (ARFID-relevant): Juice/drink profile rather than milky shake — sometimes preferred when “milkshake” is refused. Still a sweet commercial drink texture; acidity/fruit notes can be aversive for some ARFID profiles.
Energy / protein / what it is: About 1.5 kcal/ml juice-style paediatric ONS with vitamins and minerals
Complete nutrition?: FSMP for children weighing 8–30 kg with/at risk of disease-related malnutrition
Age / weight banding (label): Children weighing 8–30 kg (confirm label)
Allergens / excipients to check: Juice-style bases differ from milkshake lines — check excipients and allergens on the specific bottle.
Practical notes: Useful talking point when milk-like textures are rejected; still not a soft-drink substitute without dietetic oversight.

Abbott — children’s ONS overview (includes Plus Juce)

Nutricia Fortini

Fortini Smoothie Multi Fibre

Fruit smoothie-style sip feed (200 ml)

Smoothie / juice

Flavour variants: Berry fruit; summer fruit
Texture / mouthfeel (ARFID-relevant): Smoothie style with real fruit content stated on Nutricia materials (~15% real fruit). Different mouthfeel from milkshake Fortini — fruit acidity and pulp/fibre sensation matter for sensory acceptance.
Energy / protein / what it is: About 1.5 kcal/ml (~300 kcal, ~6.8 g protein, fibre per bottle on range materials); Multi Fibre
Complete nutrition?: Nutritionally complete for children aged 1–12 years or 8–45 kg per manufacturer; FSMP
Age / weight banding (label): From 1 year (>8 kg)
Allergens / excipients to check: Check pack — fruit smoothie lines often include milk and other allergens; verify flavour-specific ingredients.
Practical notes: FSMP under medical supervision.

Nutricia — Fortini Smoothie Multi Fibre

Pudding / yoghurt-style

Nutricia Fortini

Fortini Creamy Fruit

Ready-to-eat dessert / yoghurt-style pot (100 g)

Pudding-style

Flavour variants: Berry fruit; summer fruit
Texture / mouthfeel (ARFID-relevant): Spoonable creamy dessert — similar consistency to yoghurt/custard per Nutricia. ~5% real fruit stated. Texture may suit children who drink poorly but accept spoon foods — or fail if yoghurt-like foods are already refused.
Energy / protein / what it is: About 1.5 kcal/g (~150 kcal, ~3.5 g protein, fibre per 100 g pot on range materials); vitamins and minerals
Complete nutrition?: Can supplement diet; suitable as sole source for children 1–12 years or 8–45 kg per manufacturer precautions
Age / weight banding (label): From 1 year (>8 kg)
Allergens / excipients to check: Contains cow’s milk (fermented milk / whey) and soy (e.g. soy polysaccharides / carotenoids “contains soy” on published ingredient text). Check current pot.
Practical notes: FSMP. Often described as the paediatric yoghurt-style ONS option in UK dietetic practice.

Nutricia — Fortini Creamy Fruit

Low-volume energy shot

Nutricia Calogen

Calogen Extra

High-energy fat emulsion drink / fortifier (shots from bottle)

Energy shot

Flavour variants: Neutral; strawberry
Texture / mouthfeel (ARFID-relevant): Oily fat emulsion — distinctive mouthfeel. Ready to drink chilled; can dilute with milk/water or mix into foods. Not freezable per Nutricia. Strong sensory signature even in “neutral”.
Energy / protein / what it is: About 4 kcal/ml (~480 kcal and 6 g protein per 120 ml on datasheet); mostly fat energy plus some protein, carbohydrate, vitamins and minerals — not a balanced complete feed
Complete nutrition?: Not suitable as sole source of nutrition — supplement/fortifier only
Age / weight banding (label): Not suitable under 3 years; use with caution 3–6 years; may need dilution under 5 years — strict medical supervision
Allergens / excipients to check: Cow’s milk proteins (caseinates, whey hydrolysate). Check flavour.
Practical notes: Also marketed as Calogen Extra Shots (pre-portioned cups). FSMP. Adult-oriented branding but used in paediatric fortification under dietitian direction — age limits matter.

Nutricia — Calogen Extra

Vitaflo (Nestlé Health Science)

Pro-Cal shot

Low-volume energy-dense liquid (120 ml bottle; typically 30 ml shots)

Energy shot

Flavour variants: Neutral; strawberry; banana
Texture / mouthfeel (ARFID-relevant): Thick, energy-dense “shot” — can be taken neat or stirred into food/drinks; can be frozen per manufacturer. Low volume helps when appetite/volume is tiny; viscosity and sweetness still decide ARFID acceptance. Consistency may sit around IDDSI Level 3 when chilled — SLT check if swallowing is an issue.
Energy / protein / what it is: About 3.3 kcal/ml (100 kcal and 2 g protein per 30 ml; 400 kcal and 8 g protein per 120 ml); milk protein, fat and carbohydrate — no added micronutrient package intended to replace a multi
Complete nutrition?: Not suitable as sole source of nutrition
Age / weight banding (label): Suitable from 3 years of age onwards (manufacturer)
Allergens / excipients to check: Contains milk (milk protein, lactose) and soya (soya lecithin). Gluten free per datasheet.
Practical notes: FSMP under medical supervision. Often used alongside (not instead of) dietetic food fortification plans.

Vitaflo — Pro-Cal shot

Powder fortifier

Nutricia

Super Soluble Duocal

Neutral energy powder (carbohydrate + fat fortifier)

Powder

Flavour variants: Neutral / unflavoured (designed not to add strong taste)
Texture / mouthfeel (ARFID-relevant): White powder mixed into feeds, drinks or moist foods. Marketed as neutral-tasting — in practice some children still detect greasiness, sweetness or mouth-coating when dose rises. Changing a “safe” food’s mouthfeel can trigger refusal.
Energy / protein / what it is: Modular energy only: about 492 kcal/100 g powder; carbohydrate ~72.7 g and fat ~22.3 g per 100 g (BNF/Nutricia figures) — no protein, vitamins or minerals package
Complete nutrition?: Not a sole source of nutrition; fortifier only
Age / weight banding (label): Used under medical supervision for fortification (including infant formula contexts on UK materials) — dose and dilution only by clinician/dietitian
Allergens / excipients to check: Ingredient list centres on dried glucose syrup and vegetable oils/MCT with emulsifier E472(c); confirm current tin for allergen statements.
Practical notes: ACBS-prescribable borderline substance in UK practice for indicated fortification. Easy to over- or under-dose without dietetic instruction — not a DIY calorie hack.

Nutricia — Super Soluble Duocal

Not listed / skipped

We skipped adult-primary lines (many Fortisip / Ensure Plus SKUs) except where clearly used as paediatric modular products with published age limits. Peptide / elemental feeds, tube-feed-only presentations, and brand variants without a clear current UK manufacturer page were omitted rather than guessed. Local formularies decide what is actually available on FP10.