When you’re sick with COVID, your body needs more calories and protein than usual to fight the infection and prevent muscle loss. At the same time, symptoms like fatigue, nausea, and loss of taste can make eating feel like a chore. The goal is straightforward: prioritize protein, stay hydrated, eat anti-inflammatory foods when possible, and work around whatever symptoms are making meals difficult.
Why Your Body Needs More Protein
A healthy adult typically needs about 0.8 grams of protein per kilogram of body weight each day. During a COVID infection, that requirement jumps significantly. Clinical nutrition guidelines for acutely ill patients recommend around 1.3 grams per kilogram of body weight daily, roughly 60% more than normal. For a 150-pound person, that translates from about 55 grams to roughly 89 grams per day.
Protein matters because your immune system runs on it. Antibodies, white blood cells, and the signaling molecules that coordinate your immune response are all built from protein. Without enough, your body may break down muscle tissue to get what it needs, which is why people often feel weak and depleted after even a mild case. Good sources include eggs, chicken, fish, Greek yogurt, beans, lentils, and tofu. If solid food feels like too much, protein powder blended into a smoothie or stirred into oatmeal can help you hit your target.
Staying Hydrated With Fever and Diarrhea
Fever increases the amount of water you lose through sweat, and respiratory symptoms speed up fluid loss with every breath. Aim for at least two liters (about eight cups) of fluid per day, even if you don’t feel thirsty. Thirst is a lagging indicator, so by the time you notice it, you’re already behind.
Plain water works, but if you’re dealing with diarrhea, sweating heavily, or running a fever, you need more than just water. Fluids with a small amount of salt and sugar help your body actually retain the liquid you’re drinking rather than passing it straight through. Broth, fresh juice diluted with water, coconut water, or an electrolyte drink all fit the bill. Warm liquids like herbal tea or broth have the added benefit of soothing a sore throat and loosening congestion.
Anti-Inflammatory Foods That Support Recovery
COVID triggers an inflammatory response, and while that’s a normal part of fighting infection, excessive inflammation is what drives many of the worst symptoms. Eating foods that help modulate inflammation can support your recovery rather than working against it.
A Mediterranean-style eating pattern is one of the best studied approaches for reducing systemic inflammation. The core of it is simple: fruits, vegetables, whole grains, nuts, olive oil, and fish. These foods are rich in omega-3 fatty acids, fiber, antioxidants, and polyphenols, all of which help keep inflammation in check. You don’t need to overhaul your diet while you’re sick. Just lean toward these foods when you can. A bowl of lentil soup with vegetables, salmon with rice, or oatmeal topped with berries and walnuts all fit the pattern without requiring much energy to prepare.
Colorful fruits and vegetables are particularly useful because they’re packed with vitamins C and A, both of which play direct roles in immune function. Citrus fruits, bell peppers, sweet potatoes, spinach, and berries are all good choices. Frozen versions are just as nutritious and far easier to deal with when you’re exhausted.
Managing Nausea and Stomach Issues
COVID frequently causes gastrointestinal symptoms, including nausea, diarrhea, and loss of appetite. When your stomach is unsettled, the classic approach still works: stick with bland, easy-to-digest foods like toast, rice, bananas, applesauce, and plain crackers. Small, frequent meals are easier to tolerate than three large ones.
Ginger tea is one of the more effective natural remedies for nausea. Peppermint tea can also help, and even just smelling peppermint has a mild anti-nausea effect. If you can’t keep much down, focus on getting calories and electrolytes through liquids. Broth, smoothies, and diluted juice keep you nourished without requiring your digestive system to do heavy lifting.
Eating When You Can’t Taste or Smell
Loss of taste and smell remains one of COVID’s more frustrating symptoms, and it can kill your motivation to eat. When food tastes like cardboard, texture and temperature become your best tools for making meals tolerable.
Mixing crunchy and smooth textures in the same meal can stimulate your appetite even when flavor is absent. Try apple slices or celery with peanut butter, crackers with hummus, or granola stirred into yogurt. The contrast gives your brain something to register beyond blandness. Some people find that chilled or frozen foods are easier to eat than warm ones during this phase. Yogurt, smoothies, cold pasta salad, egg salad, and frozen fruit are all worth trying. If warm food tastes off to you, don’t force it. Eat things at room temperature or cold and focus on getting enough calories in whatever form works.
If solid food feels unappealing altogether, liquid nutrition can fill the gap. Smoothies blended with fruit, yogurt, and a scoop of protein powder deliver calories, protein, and vitamins in a form that bypasses the chewing-and-swallowing experience that some people find unpleasant when their senses are disrupted.
What to Limit or Avoid
While your body is fighting an infection, certain foods can add to the inflammatory burden or worsen symptoms. The WHO recommends limiting:
- Added sugars: sodas, sweetened juices, cookies, cakes, and chocolate. These spike blood sugar and promote inflammation, neither of which helps recovery.
- Processed meats: bacon, sausage, deli meats, and hot dogs, which are high in both sodium and saturated fat.
- Fried and ultra-processed foods: fast food, frozen pizza, packaged snacks, and anything containing industrially produced trans fats.
- Excess saturated fat: found in butter, cream, cheese, and fatty cuts of meat. Swap in unsaturated fats from sources like olive oil, avocado, nuts, and fish when you can.
This doesn’t mean you need to be rigid. If the only thing that sounds good is a grilled cheese sandwich, eat the grilled cheese sandwich. Getting calories in is more important than perfection, especially when your appetite is low. The goal is to steer toward nutrient-dense options when you have the energy and appetite to choose.
A Simple Daily Framework
When you’re sick, complicated meal plans aren’t realistic. Here’s a practical way to think about each day:
- Morning: oatmeal with berries and nuts, or eggs with toast, plus a glass of water or juice.
- Midday: soup with beans or chicken, a sandwich with lean protein, or a smoothie with fruit, yogurt, and protein powder.
- Afternoon: yogurt, a handful of nuts, fruit, or crackers with peanut butter.
- Evening: rice or pasta with vegetables and fish or chicken, or lentil stew. Keep portions manageable.
- Throughout the day: sip water, broth, herbal tea, or electrolyte drinks. Don’t wait until you’re thirsty.
If you can only manage two meals and a snack, that’s fine. Prioritize protein at every eating opportunity, keep fluids constant, and choose fruits and vegetables when they appeal to you. Recovery eating doesn’t need to be perfect. It needs to be consistent enough to give your immune system the fuel it requires.