I make two scrambled eggs for breakfast every day. Is that bad for my cholesterol?

Though eggs used to have a bad rap as a top source of dietary cholesterol, experts are no longer as concerned about the type of cholesterol found in food. We know now that most blood cholesterol is produced by the liver, and that foods high in saturated fat and trans fat (think bacon and doughnuts) are far worse than egg yolks because they stimulate the liver to make more cholesterol than your body needs.

If you like eating eggs, there are plenty of reasons to enjoy them scrambled, hard-boiled, or however, you prefer. They are packed with vitamins (including D), minerals, and almost 6 grams of protein. That said, you might want to cut back to one egg at your morning meal: Studies have shown that for most people, up to one egg per day does not raise the risk of heart attack, stroke, or any other type of heart disease. But there isn’t as much research on eating more than that. In other words, one egg a day is a safe bet, while two is less charted territory.

Another caveat: A daily egg may not be safe if you have diabetes or you’re already at high risk of cardiovascular disease. If you’re concerned, consider mixing up your breakfast routine with a bowl of heart-healthy steel-cut oats, sprinkled with nuts and berries.

I know fibre can help with things like cholesterol levels and losing weight—but it gives me gas. Is it really that important?

Yes, fibre is extremely important—and not only for your gastrointestinal system. As you mentioned, it can help with cholesterol and weight management, too.

A study published in the Archives of Internal Medicine found that women who ate the most fibre (around 25 grams a day) were 22 per cent less likely to die from any cause, compared with women who ate just 10 grams.

But some people do develop gas and bloating when they up their fibre intake. One trick is to start slowly: Let your body get used to increased fibre in small amounts, rather than loading up on the stuff all at once.

As your digestive system adjusts, it may be helpful to keep in mind that foods with soluble fibre (such as fruit, oats, beans and peas, and nuts and seeds) tend to produce more gas than foods with insoluble fibre (a.k.a. roughage, including whole grains and veggies).

But don’t give up on fibre! Your body needs both types. With time and experimentation, you will find high-fibre foods that agree with you.

Until you hit your fibre mark (the daily value is 25 grams), taking a probiotic may help with regularity. Sticking to an exercise routine and drinking more water should make a difference.

Is spirulina really a miracle food? I read it can boost brain function and lower cholesterol.

Spirulina, a type of blue-green algae, is what lends so many smoothie bowls on Instagram their sea-coloured hue. It’s an excellent source of protein, iron, and beta-carotene, a pigment that your body converts into vitamin A. Some studies suggest spirulina has anti-inflammatory properties and that it may reduce high cholesterol, heart disease, and liver disease.

Not bad for pond scum. But there are safety concerns linked to this buzzy ingredient. Spirulina, which grows in both salt and freshwater, can become contaminated with toxins produced by other species of algae, and those toxins can cause severe side effects, including liver damage.

As with other supplements, spirulina isn’t regulated by the FDA. Before you buy a product (in powder or pill form), do some research to find a brand you like. And if you’re pregnant or breast-feeding, or taking any prescription meds, check with your doctor first.