Ice cream is one of the easiest ways to eat a lot of calories in a small, soft, cold serving, which is exactly why it works so well when you are trying to gain weight, rebuild an appetite, or simply get more energy in without feeling overwhelmed by a big meal. A single 100g serving of full-fat ice cream typically provides around 200 to 250 calories, and premium varieties can exceed 350 to 400 calories per 100g, most of it from fat and sugar. With a few additions you can push a single bowl past 700 or 800 calories without making it any harder to eat.

This guide covers which shop-bought ice creams are highest in calories, how to add calories to any ice cream at home, and how to use ice cream when your appetite is low. It is written for people who need to eat more, not less, whether that is for weight gain, recovery, hard training, or an appetite that has dropped off. It sits alongside our wider guides to calorie-dense foods and how to gain weight.

I am James Frost, founder of Flaming Phoenix. I built Phoenix Bars, a 557-calorie bar designed for exactly this problem, after around 150 conversations with endurance athletes and people who struggle to eat enough. Ice cream came up in a lot of those conversations as one of the few foods that still goes down easily when nothing else will, so it is worth understanding how to get the most from it.

Why ice cream works when you need more calories

Three things make ice cream unusually useful when eating enough is a struggle. It is energy-dense, so you get a lot of calories in a small volume, which matters when a full plate of food feels like too much. It is soft and cold, which makes it one of the easiest textures to manage when chewing is tiring, when your mouth is sore, or when warm food feels unappealing, and is why it belongs on any list of soft high-calorie foods. And it is genuinely enjoyable, which matters more than people think, because the food you will actually finish beats the "optimal" food you leave half-eaten.

The trade-off worth being honest about is that plain ice cream is largely fat and sugar, with limited protein, fibre or micronutrients. That is fine when the goal is simply more energy, but it is why the "how to add more" section below focuses on additions that bring protein and nutrients alongside the calories, so a bowl of ice cream does more than just deliver sugar.

The highest-calorie shop-bought ice creams

Calorie content varies enormously by brand and style, so the label is always your best guide, but as a rule the richest, creamiest, full-fat tubs sit at the top and anything labelled "light," "low calorie," "protein" or "frozen yoghurt" sits well below. If your aim is maximum calories, the pattern to look for is high fat content, added inclusions like cookie dough, brownie, caramel or nut swirls, and a premium dairy base rather than a churned-light or reduced-fat one.

In practical UK terms, the highest-calorie options are the indulgent full-fat luxury tubs, especially flavours loaded with fudge, caramel, biscuit, peanut butter or brownie pieces. These commonly land around 250 to 280 calories per 100g and sometimes higher, so a generous 150g bowl can reach 400 calories before you add anything. Standard supermarket vanilla and soft-scoop tubs are more modest, often nearer 180 to 200 calories per 100g, which is still useful but leaves more room to boost. Sorbet, sherbet, "light" ranges and most protein or low-calorie ice creams are the ones to avoid if calories are the point, as many contain half the energy of a full-fat equivalent.

The simplest approach: buy the richest full-fat flavour you genuinely enjoy, check the per-100g figure on the label, and then use the additions below to close the gap to your target.

How to add hundreds of calories to any ice cream at home

This is where ice cream becomes genuinely powerful for weight gain, because the base is just the starting point. Each of these additions is calorie-dense, easy to stir through or pour over, and requires no cooking. Used together, they can add 400 to 600 calories to a single bowl.

Nut butter is the single most effective addition. A heaped tablespoon of peanut, almond or cashew butter adds roughly 100 calories plus protein and healthy fat, and it melts into softening ice cream beautifully. Double up for 200 calories. Full-fat cream or condensed milk poured over the top adds around 130 calories per generous drizzle of double cream, or more for condensed milk, and both dissolve into a rich sauce. Chopped nuts, roughly 180 calories per 30g handful, add crunch, protein and fat. Granola or crushed biscuits add 120 to 150 calories per portion along with texture that makes the bowl more satisfying, and our high-calorie granola is an ideal topping. Chocolate, whether melted over the top, grated, or as chunks, adds 150 or more calories per 30g. Honey, maple syrup or a chocolate or caramel sauce adds around 60 to 100 calories per tablespoon of quick, easy energy. Dried fruit like chopped dates or raisins adds concentrated calories plus some fibre. Seeds such as a spoon of ground flax, hemp or chia add calories and nutrients and disappear into the mix.

A worked example: a 150g bowl of full-fat chocolate ice cream (around 400 calories) with a heaped tablespoon of peanut butter (100), a handful of chopped nuts (180) and a drizzle of chocolate sauce (80) comes to roughly 760 calories in a single soft, cold bowl that takes two minutes to make and is genuinely easy to eat. If you want more ideas in the same vein, see our high-calorie desserts guide.