When you have COVID, the best things to eat are protein-rich foods, fruits and vegetables, and plenty of fluids. Your body is burning through energy and nutrients faster than usual to fight the virus, and most people lose their appetite right when nutrition matters most. The goal is to eat enough to support your immune system and prevent muscle loss, even if meals need to be small and simple.
Why Eating Enough Matters During COVID
Fever, inflammation, and immune activation all increase your body’s calorie and protein demands. Even a few days of eating very little can lead to noticeable muscle loss, because your body breaks down muscle tissue for energy when it isn’t getting enough from food. This is one reason people often feel weak for weeks after recovering from a viral illness.
You don’t need to force full meals if you feel nauseated or have no appetite. Eating several smaller portions throughout the day is more realistic and easier on your stomach than three large meals. The priority is getting some protein, some produce, and enough calories to keep your body fueled.
Protein Comes First
Protein is the single most important nutrient during an acute infection. Your immune system relies on it to produce antibodies, and your muscles need it to avoid wasting. Clinical nutrition guidelines for seriously ill patients recommend significantly more protein than usual, up to nearly twice the normal intake per pound of body weight. You don’t need to hit those clinical targets at home, but you should aim to include a protein source at every meal or snack.
Good options that require minimal cooking include eggs (scrambled in a few minutes), Greek yogurt, canned tuna or salmon, rotisserie chicken, cottage cheese, nut butters on toast, and tofu. If chewing feels like too much effort, protein-rich smoothies made with milk or yogurt, a scoop of nut butter, and frozen fruit can pack a lot of nutrition into something easy to get down. Legumes, beans, and pre-cooked chicken strips are also simple choices when energy is low.
Fruits, Vegetables, and Whole Grains
Nutritional protocols for COVID patients recommend at least four servings of fruits and vegetables per day. These provide the vitamins, minerals, and antioxidants your immune system needs to function well. Berries, citrus fruits, bananas, cooked spinach, sweet potatoes, and avocados are all nutrient-dense and easy to eat when you’re not feeling great.
Whole grains like oatmeal are a solid foundation for sick days. Plain steel-cut or old-fashioned oats give you sustained energy without a sugar crash. You can top them with milk, honey, and mixed berries to add calories and nutrients without much effort. Whole grain toast with nut butter is another low-effort option that covers protein, healthy fats, and complex carbohydrates in a few bites.
Seeds like chia, pumpkin, sunflower, and flax can be tossed into smoothies, yogurt, or oatmeal to add extra nutrition without any additional cooking.
What to Eat With a Sore Throat
COVID often causes a painful sore throat that makes swallowing difficult. Warm liquids like tea and broth can soothe the throat and provide hydration at the same time. Soft foods are your best bet: mashed potatoes, scrambled eggs, yogurt, smoothies, soup, applesauce, and well-cooked oatmeal. Avoid anything acidic (like orange juice or tomato sauce), very spicy, crunchy, or dry, as these can irritate an already inflamed throat.
Letting foods cool to a warm (not hot) temperature before eating also reduces discomfort.
What to Eat With Nausea or Diarrhea
COVID can cause significant gastrointestinal symptoms, including nausea, vomiting, and diarrhea. If you’re vomiting, don’t try to eat a meal right away. Start with small sips of fluid, about a mouthful every three to five minutes, to rehydrate without overwhelming your stomach. Once fluids are staying down, move to bland, easy-to-digest foods like plain rice, bananas, toast, and broth-based soups.
The old advice to stick exclusively to bananas, rice, applesauce, and toast (the BRAT diet) has fallen out of favor because it’s too nutritionally limited. Once your stomach can tolerate it, try to diversify back toward fruits, vegetables, lean protein, and whole grains. Current nutrition protocols emphasize maintaining a varied diet even during GI symptoms, because your body needs the full spectrum of nutrients to recover. Monitor your fluid intake closely if you’re dealing with diarrhea or vomiting, since dehydration can set in quickly.
Hydration Is Non-Negotiable
Fever causes you to lose more fluid through sweating and faster breathing than you realize. General recommendations are about 15 cups of fluid per day for men and 11 cups for women under normal conditions, and you likely need more when you’re running a fever. Water is the foundation, but you don’t have to rely on plain water alone.
Broth-based soups count toward your fluid intake and add sodium, which you lose when you sweat. Drinks with electrolytes, or hydrating powders that contain a combination of salt and sugar, help your body absorb and retain the fluid more effectively. Herbal tea, diluted juice, and coconut water are other options. If you’re nauseated, take small sips frequently rather than trying to drink a full glass at once.
Signs you’re getting dehydrated include dark yellow urine, dry mouth, dizziness when standing up, and headache. These symptoms overlap with COVID itself, so err on the side of drinking more rather than less.
What About Vitamin D and Zinc?
You’ve probably seen claims that vitamin D and zinc can help fight COVID. The evidence is less clear-cut than social media suggests. The NIH’s COVID-19 treatment guidelines state there isn’t enough evidence to recommend vitamin D for preventing or treating COVID. For zinc, the NIH actually recommends against taking doses above the standard daily allowance for COVID prevention, and says there’s insufficient evidence to recommend zinc as a treatment either.
That doesn’t mean these nutrients are unimportant for immune function in general. Vitamin D is safe at daily intakes up to 4,000 IU for adults, and zinc is safe up to 40 mg per day. If you suspect you’re deficient (vitamin D deficiency is common, especially in winter), a standard daily supplement at normal doses is reasonable. But megadosing won’t speed up your COVID recovery based on current evidence, and high doses of zinc can cause nausea, which is the last thing you need.
Foods That Support Recovery After COVID
Once the acute illness passes, your body still has repair work to do. Lingering fatigue, brain fog, and muscle weakness are common for weeks afterward. Research on post-COVID recovery points to anti-inflammatory dietary patterns as beneficial for reducing the systemic inflammation that can persist after infection. Omega-3 fatty acids (found in salmon, sardines, mackerel, walnuts, and flaxseed) are particularly useful for this purpose.
A Mediterranean-style eating pattern, rich in vegetables, fruits, whole grains, fish, olive oil, nuts, and legumes, has been linked to improved functional recovery after COVID. Plant-based diets show similar benefits. The common thread is an emphasis on whole, unprocessed foods and a reduction in packaged, high-sugar, and highly processed items.
If you lost weight or muscle during your illness, prioritize calorie-dense, protein-rich foods during the weeks after. Nuts, seeds, avocados, eggs, full-fat dairy, and fatty fish can help you rebuild without requiring enormous meal volumes. Even a short walk after eating can help with digestion and reduce the post-meal sluggishness that many people experience during recovery.
A Simple Sick-Day Eating Plan
When you’re exhausted and can barely get off the couch, elaborate meal planning isn’t realistic. Here’s what a practical day of eating with COVID might look like:
- Morning: Oatmeal made with milk, topped with banana slices and a spoonful of nut butter. Warm tea or water with electrolytes.
- Mid-morning: Greek yogurt with a handful of berries and a sprinkle of seeds.
- Lunch: Broth-based chicken soup with vegetables, or a scrambled egg on toast with avocado.
- Afternoon: A smoothie made with frozen fruit, yogurt or milk, and a spoonful of nut butter.
- Dinner: Canned salmon or pre-cooked chicken with rice and steamed vegetables, or a simple bean and vegetable soup.
- Evening: Cottage cheese with fruit, or a small handful of unsalted nuts.
None of these take more than a few minutes to prepare. If even this feels like too much, ask someone to help with food prep, or stock up on high-quality prepared options like pre-made soups, rotisserie chicken, and frozen fruit for smoothies before your energy dips further.