Table 1.

Food-based and ONS intervention composition

Intervention	Recipe	Volume per serving (ml)	Energy content (kcal) per serving	Protein content (g) per serving	Approximate cost per serving
Food-based intervention options					To the care home
Fruit fool	300 ml fruit puree, 150 g custard, 2 tbsp milk powder, 150 ml evaporated milk, 1 tbsp Honey (makes 3)	200	275	7.9	70p
Chocolate mousse	1 sachet instant chocolate dessert, 4 tbsp milk powder, 150 ml double cream, 150 ml full cream milk (makes 2)	150	410	10.95	65p
Milkshake	200 ml full cream milk, 1 tbsp milk powder, 1 tbsp double cream, milkshake powder to taste	200	306	9.8	70p
Fruit smoothie	200 ml full cream milk, 2 tbsp milk powder, 3 tbsp double cream, 1 ripe banana/other fruit, 30 g ice cream	200	306	10	80p
Milky coffee	200 ml full cream milk, 1 tbsp milk powder, 1 heaped tsp of coffee granules, 2 tbsp double cream	200	278	10.6	75p
Malted drink	200 ml full cream milk, 1 tbsp milk powder, 1 tbsp double cream, malted powder (Horlicks/ovaltine or equivalent) to taste	200	304	12	65p
Hot chocolate	200 ml full cream milk, 1 tbsp milk powder, 1 tbsp double cream, drinking chocolate powder to taste	200	306	10.6	65p
ONS intervention options					To the GP practice
Fortisip Bottle (Nutricia Advanced Medical Nutrition)		200	300	12	£2.06
Fortisip Compact (Nutricia Advanced Medical Nutrition)		125	300	12	£2.02
Nutriplen (Nualtra Ltd)		125	300	12	£1.45

The nutritional content of the FB recipes was analysed by the Primary Researcher using the nutritional software package, Diet Plan 6

Fortisip bottle and Fortisip compact are manufactured by Nutricia Advanced Medical Nutrition and were provided by Nutricia for use within the first 3 months of the intervention duration. Nutriplen is manufactured by Nualtra Ltd and was provided by Nualtra for the second 3 months of the intervention duration. The ONS did not incur a cost to the care home GP practice in this trial but would do so within usual care