The best way to eat eggshells is to finely powder them after boiling and baking to sterilize and dry them, then mix the powder into foods like smoothies, soups, juices, or baked goods for a calcium boost, but always start with small amounts and consult a doctor, especially if on other supplements, as they provide rich calcium but need careful preparation to avoid sharp bits and salmonella.
Shells! Yes you can eat that shells too for extra calcium! Just place them in the oven on 225° for about 20 minutes, then you can grind them up to add into your smoothies or sneak into other recipes. And of course don't forget to feed back to your chickens!
You'd be surprised to learn how nutritious and beneficial the shell can be. Now, the thought of consuming eggshells probably doesn't appeal to you. However, they are an effective (and inexpensive) source of calcium to make your bones stronger and further improve health.
Spread the shells on a baking sheet. Bake at 225°F for 20 minutes to dry them out. Using a coffee or spice grinder, grind the shells to a very fine powder. You can also use a blender for this, but I find that a coffee grinder makes the finest powder, so you don't have any large eggshell pieces in your smoothie.
For adults, the recommended dietary calcium intake can be obtained by consuming of 2.7 g of eggshell powder (Waheed et al., 2019). Furthermore, the bioavailability of calcium from this source is reportedly higher than that from synthetic mineral sources such as aragonite or calcite.
total content of collagen about 85% could be extracted by either 0.5 M acetic or 1.5 M citric acid, at 4 °C for 24 h; using the ratio of skin to acetic and citric acids at 1:40 and 1:20 (w v¹), respectively.
Don't throw out the water your boil your eggs in. This water contains calcium that your plants will love. Just let the water cool and dump it on your plants. You can also save egg shells, rinse them out real well, smash them up then mix them with dirt and/or potting soil before planting any plants.
Redwine said that most vitamins, calcium, fat, and cholesterol are contained in the yolk. A whole egg delivers 71 calories and 6.3 grams of protein.
The increase in calcium provided by the eggshells could result in an overabundance of calcium. Too much calcium in the body can manifest in nausea, vomiting, fatigue, irregular heartbeat and low blood pressure. It may also produce kidney stones.
Several weeks ago, we published an article detailing how the OG of bodybuilding, Arnold Schwarzenegger, added egg shells into his daily protein shake. The feedback, perhaps inevitably, was polarising to say the least. Some readers backed the benefits of the egg shell and others couldn't begin to understand the logic.
Finding an unexpected crunch in your omelet or pastry may feel unpleasant and even unappetizing, but aside from that sensorial discomfort, ingesting eggshells is harmless. In fact, they're quite nutritious. They are made of calcium carbonate, a common form of calcium that is also found in human nails, bones, and hair.
Powered/crushed eggshell has been shown to have noticeable health benefits including as a source of calcium. Large pieces however may cut your throat/esophagus before it gets to your stomach. Once in your stomach the stomach acid will quickly dissolve the eggshell.
One teaspoon of eggshell powder contains up to 1,000 mg of calcium, which corresponds to the average daily requirement of an adult. Children aged ten to twelve need 1,100 mg of calcium per day and adolescents aged 13 to 18 need 1,200 mg.
Eggshells, often discarded, are surprisingly versatile and nutrient-rich. They enrich garden soil with calcium, act as a natural fertilizer and pest deterrent, and enhance compost.
Minerals in an egg
In the UK, a reference nutrient intake (RNI) of 10mcg of vitamin D per day is now recommended for everyone in the population over 4 years of age (Vitamins and minerals - Vitamin D - NHS (www.nhs.uk) . Two medium eggs would provide about one third (32%) of this amount.
Dried figs: Rich sources of calcium and contain 160 mg per 100 grams of serving. Dried figs are one of the best sources of calcium, providing the required calcium to make your bone and teeth stronger and healthier. They can be included in your diet as whole fruits, smoothies, and desserts.
Grind into a Fine Powder: Once the eggshells are completely dry, grind them into a fine powder using a coffee grinder, blender, or mortar and pestle. The finer the powder, the easier it is for your body to absorb the calcium.
They can cause fever, diarrhea and stomach cramps. Most people experience these symptoms 12 to 72 hours after eating an infected egg. These microbes may be present in eggs that are raw or undercooked. Some studies suggest boiling eggshells in water for 30 minutes should make them safe to eat.
Chicken eggshell has high calcium content (380 mg of calcium/gram) and bioavailability comparable to calcium carbonate (~39%) with 1 g sufficient to provide one half of a sub‐Saharan African adult female's dietary calcium needs.
Avoid collagen saboteurs: Sugar and ultra-processed foods (they trigger glycation, damaging existing collagen) Smoking + pollution (oxidative stress = collagen breakdown) Unprotected sun exposure (UVA rays are collagen's worst enemy)
Five signs collagen is working include firmer, more hydrated skin with fewer fine lines, stronger and faster-growing nails, healthier and thicker-looking hair, less joint stiffness, and better gut health/recovery, with initial improvements often seen in skin and nails within weeks, while deeper benefits like joint support take longer.