Written by Rachel Orriss | Last updated July 2026 | 4 min read
Is Porridge Good for Weight Loss? The Honest Answer
Porridge is widely recommended as a healthy breakfast, and for good reason. But whether it is the best choice for weight loss depends on how you make it, how much you eat, and what you are trying to achieve.
Quick answer: Plain porridge made with water or skimmed milk is a reasonable breakfast for weight loss — filling, low GI, and relatively low calorie at around 150–200 calories for a standard portion. The problem is that most people add enough toppings to double the calorie count, and it is low in protein compared to a meal replacement shake.
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Porridge vs a protein shake — how they compare
| Breakfast | Approx. calories | Approx. protein | Prep time |
|---|---|---|---|
| Plain porridge (40g oats, water) | ~150 kcal | ~5g | 5–8 min |
| Porridge with milk, honey, banana | ~380–450 kcal | ~8–10g | 8–10 min |
| Formula 1 shake (2 scoops, semi-skimmed milk) | ~200–220 kcal | ~18–20g | 90 sec |
| Formula 1 + PDM | ~280–300 kcal | ~33–35g | 90 sec |
Figures are approximate. Check product labels for exact nutritional information.
The honest case for porridge
Low GI — keeps you fuller longer
Oats have a low glycaemic index, which means they release energy slowly and tend to keep you satisfied until mid-morning. This is a genuine advantage over high-sugar breakfast options like cereal or toast with jam.
Cheap and accessible
Plain oats are one of the cheapest foods available. A 40g portion costs pennies. If budget is the primary concern, plain porridge with water is hard to beat.
The topping problem
Most people do not eat plain porridge. Honey, banana, peanut butter, granola — each addition adds 50–150 calories. A “healthy” porridge bowl can easily reach 400–500 calories before you have noticed.
Low protein
Plain porridge provides approximately 5g protein per serving — not enough to keep most people satisfied until lunch or to support muscle retention during weight loss. Adding milk improves this but still falls well short of a protein shake.
Which is better for weight loss?
If you enjoy porridge, eat it plain or with minimal toppings and it is a perfectly reasonable breakfast. If you are trying to maximise protein, minimise calories, and reduce morning prep time, a Formula 1 shake is more efficient — more protein, similar or fewer calories, and 90 seconds to make.
The best breakfast for weight loss is the one you will actually eat consistently. If that is porridge, make it plain. If you want something faster with more protein, Formula 1 is the practical alternative.
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Frequently asked questions
Is porridge good for weight loss?
Plain porridge is a reasonable breakfast for weight loss — low GI, filling, and around 150 calories for a plain portion. The issue is that most people add enough toppings to significantly increase the calorie count, and it is low in protein compared to a meal replacement shake.
How many calories is a bowl of porridge?
Plain porridge made with 40g oats and water is approximately 150 calories. Made with semi-skimmed milk it is around 200–220 calories. With typical toppings (honey, banana, peanut butter) it can reach 400–500 calories.
Is porridge or a protein shake better for weight loss?
A protein shake provides significantly more protein (18–20g vs 5g for plain porridge) at a similar or lower calorie count, and takes 90 seconds to make. If protein and convenience are priorities, a shake is more efficient. If you prefer real food in the morning, plain porridge is a reasonable alternative.
